Hilary was diagnosed with ADHD when she was 7 years old. She takes medication for it since then and has stated that she is extremely hyperactive when she doesn't take it.
Hilary announced in August 2011 that she was pregnant with her first child.
Hilary in February 2010, got engaged to Mike Comrie the hockey player.
In 2009, Hilary admitted that anytime she stayed in a hotel, she made the bed herself before checking out. She always felt self-conscious about leaving the room a mess when people knew that she had been staying there.
Hilary considers her big sister, Haylie, as her biggest role model in life, other than her mother. In 2007, after Hilary lost weight and appeared on the August 2007 cover of "Shape" Magazine in a bikini, she admitted that Haylie helped prevent her from going too far with her dieting. Haylie encouraged her sister to ease up and not beat herself up so much to be stick thin, and Hilary took that advice to heart.
When touring in the U.S. in the summer of 2006, Hilary shared her favorite song of her's at the time, which was Beat of my Heart. This was said at her tour in Tom's River, New Jersey on July 29th.
At first, Hilary didn't even want to take the role of Lizzie McGuire on The Lizzie McGuire Show.
Hilary Duff was born 7 1/2 weeks premature.
Hilary went to New York to see Hairspray on its opening night, since Haylie Duff, who is Hilary's older sister, starred in it.
Hilary wrote all but one of the songs on her album Dignity. The one song she didn't write was Outside Of You.
Hilary Duff is the younger sister to actress/singer Haylie Duff. The sisters are two years and seven months apart.
Ending their five year conflict, Hilary and Lindsay Lohan patched up their friendship in 2007.
Hilary's CD, Dignity, was released on April 4, 2007.
She is 5 feet 2 inches (1.57 metres) tall.
Hilary had been made into a Barbie doll. The 'Red Carpet Glam Hilary Duff Doll', is wearing a polka-dot dress and red satin sash.
Joel Madden and Hilary split on November 28, 2006. Hilary's friends have said that she felt Joel wasn't mature enough to be in a relationship with her.
Hilary has done a cover of Madonna's Material Girl featuring Haylie Duff.
Hilary has her own fragrance, With Love... Hilary Duff.
She appeared with her sister, Haylie, on TRL. The two spoke about their new movie Material Girls.
Hilary's band is Shauney Baby (drums), Michael Chaves (guitar), Jason Hook (guitar), Loren Gold (keyboards) and Kurt Morgan (bass).
In both Lizzie McGuire episodes "I've Got Rhythmic" and "The Rise and Fall of Kate" Hilary does her own gymnastics stunts.
Hilary's Most Wanted CD debuted at no. 1 and has been certified platinum.
Hilary's most memorable gift she's ever received was a Barbie convertible.
At a young age, Hilary studied Cecchetti ballet.
Hilary is signed with the record label Hollywood Records.
Hilary and and her sister, Haylie Duff helped start the Nascar California Speedway Auto Club 500 by serving as Honorary Starter and Honorary Race Official, respectively, helping to wave the Green Flag to start the race on February 26, 2006.
Hilary covered Wham!'s song "Last Christmas" (in album Santa Claus Lane), and The Go-Go's' song "Our Lips Are Sealed" (in album A Cinderella Story and Most Wanted, a duet with her sister Haylie).
In her early days, Hilary cheated on spelling tests by writing the words on her desk. But once she got caught, and she never cheated again.
Hilary was nominated for the "Worst Actress" Razzie Award for Cheaper By The Dozen 2 as well as for The Perfect Man.
Hilary and beau Joel Madden appeared together on the February 2006 cover for Teen People magazine. They are in a story called "Love Issue: How To Find It & Make It Last."
In 2005 and 2006 Hilary was the spokesperson for the clothing line called "Candies," it can be found at Kohl's department stores in the U.S.
Hilary has very weak teeth, due to her poor health as a child, and has chipped them several times on her microphone while singing.
In 2005, Hilary appeared along with her sister, Haylie Duff, in the Ice Breakers Liquid Ice commercial filmed at The Standard Hotel in Los Angeles, CA. In 2006, they appeared again in the Ice Breakers Ice Cubes gum commercial.
On March 6, 2005, the mayor of Houston announced that day, March 6, was officially named "Hilary Duff Day".
Hilary performed the song "The Tiki, Tiki, Tiki Room" on the DisneyMania 1 CD. She also performed "The Siamese Cat Song" with her sister Haylie Duff on the DisneyMania 2 CD. Hilary also sang "Circle of Life" with the Disney Channel Circle of Stars.
Hilary's natural hair color is blond, and her eye color is green.
Hillary: (on reports she had performed a lap dance for Mike Comrie) I mean, little ol' me? It's shocking. People love to believe it - but it's not true. And they're so descriptive about these lap dances. I don't even know how to do a lap dance!
Hilary: I'm not a perfect, prude girl. I like to do normal things that girls my age do. But as nice as it is for the rest of the world to watch you fall apart, it's not a respectable way to be talked about. I don't want that kind of attention. If I can't get any from what I'm doing now, then I'll figure something else out.
Hilary: (about taking on more adult roles that don't suit her younger fan base) I don't want to restrict myself from doing things that stimulate me just to make them happy. If they continue to like me, that's cool, but I don't want to cater to them. I'm not 13, 14, or 15 anymore.
Hilary: (about the cattiness among girls today) It kind of scares me a little. They hate each other, then they love each other, and then they hate each other more. It's really hard to find people who don't feel like they're in competition with you.
Hilary: (about her feud with Lindsay Lohan) I have a feeling that if I was a normal girl that went to a normal high school, the high school would probably talk about it for two days, and then it would be over. But just because people know who I am and people know who she is, everybody loves to talk about it. I don't know her. I don't care. If you read all the interviews, I haven't said anything about it. I try and keep my mouth shut. That's all I can say.
Hilary: My relationship with my mom is so amazing. We never got to have that stage that people go through, like when you're 13 and you think you're too cool for your parents. When you're embarrassed by them and stuff. We never went through that because I was constantly working and she constantly had to be there. We just because best friends. I tell her everything. She's really my role model and my inspiration. She's such a good person and such a strong person. A lot of people give her flack for being strong and being smart, but I think I envy that in her.
Hilary: (about filming Raise Your Voice) It was hard. People have been asking me today like what the most challenging part of the movie was, and it wasn't the crying scenes. I think that's much easier than trying to make people laugh. Crying on command is not that difficult. But the parts that were harder for me were after the tragedy happens to Terri in her life, it's kind of like just like a closed-off, numb feeling. She doesn't feel any emotion – no happiness, no sad. She's kind of like nothing. That was the hardest thing for me. And then going to the school and feeling like the outsider, I kind of learned how to do that a lot with Lizzie McGuire because she was the dork that didn't really fit in. And everybody kind of made Terri feel very unwelcome at the school at first.
Hilary: (asked what her middle name, Erhard, means) What were my parents thinking? It's a family name. My dad's grandfather was the first banker in this town in Texas and he did all these really great things… He started the first school there. We used to have a ranch out there which was an old cotton plantation. So it's a family name. But most people think it's Ann, and I just go along with that.
Hilary: (asked what lessons she has learned from watching other girls her age in the acting business) I think I'm happy with who I am. I don't know if I learned that from other girls or just people in general. It's hard to stay true to yourself and what you want in life when there are so many distractions and so much craziness going on around you. Living in LA is pretty damn hard. But I feel like I can be alone with myself at the end of the day and that makes me really satisfied.
Hilary: (on growing up with her sister) If Haylie had friends over to stay when we were little, and they left me out, I'd freeze their underwear! I'd wet the knickers, put them in the freezer and snap them to ruin them. Whatever I did, Haylie always got me back. Older siblings know how to be good fighters - when you're younger you just hit back. I'm sure there were a couple of flying hairbrushes.
Hilary: (admitting she lost a lot of weight because she felt pressured to get thin) I did get skinny. I've felt that pressure, like everyone else in my position. When a newspaper comes out that says "Duff Puff - she must have gained 15 pounds" or something like that, how would any normal person react?
Hilary (on her fragrance): I wanted to create a fragrance that is pleasing and embodies my sense of style and personality. A fragrance that everyone will enjoy… including me.
Hilary: I try not to wear like sunglasses because if you wear sunglasses, if you see someone who walks into the room with sunglasses, aren't you going to look at them and think, "Who's hiding under there?" So why would you do that?
Hilary: When I'm on tour, I'm in a new city every single night, and the energy and the crowds and the kids and the screaming and them knowing every single word of my music and being onstage is such an energetic feeling with a big payoff. Working on a movie, things are a little more slower paced. But sometimes if I'm in the middle of touring, I'll be like, "Man, I really wish that I was working on a movie right now." Or if I'm working on a movie, I'll be like, "Oh, I wish that I was touring right now." I just love them both so much. It's hard to choose which is the best.
Hilary: So many schools are getting rid of music programs and it's really sad because I know that when I started singing and stuff it was something that I always wanted to do and I never believed in myself to be able to do it. I think it's so important. It opens someone up and you're able to learn about yourself. You feel worth something when you can learn how to do something that's so, I know that when I got into music, I started feeling very motivated because I wanted to achieve this challenging thing. I think it's really important if it's the piano or the guitar or the bass or drums or singing or anything, it's so important to have music in your life.
Hilary: There's definitely times that I get that frustrated when I can't sing something that I want to or I can't hit a certain note that day. There's definitely a process where I'm writing and I'm like, "This is stupid. Why did I write this? Let's start from the beginning." And I'll end up throwing something away that I really did like, just because it didn't sound that great that day. There's definitely some challenging parts.
Hilary: I think that there's really no way to prepare yourself, to say, "Oh, I've got all this going on." You just do it. It's like I want to be able to do all of these things, and I have to be really prepared to do it. It doesn't really bother me, every day thinking that I'm going to have to switch modes to singing or acting or traveling, or this, that and the other. You just kind of do it. It's just kind of natural.
Hilary: Every week I read about myself in a magazine, about something that I haven't done or some place that I've never been or don't even know. It's just gossip, rumors, egos, and politics.
Hilary: In high school, kids deal with such harsh things that people don't realize can really affect their entire lives. They are so interested in getting the boyfriends and wearing low cut shirts so the boys will like them. That shouldn't be their goal. They shouldn't do things for other people, they should do things if they have dreams of their own and really work hard for that.
Hilary: We raise so much money for hospitals, but it's not just about that. Anybody can come up with a bunch of money to give to somebody. It's about going to a hospital and hanging out with the kids and dancing and singing with them or giving underprivileged kids a chance to go to a theme park for a day or rebuilding a playground. I love it so much. It's really gratifying.
Hilary: It's crazy and so surreal. I feel like such a normal person, yet everybody around the world knows my music, my movie, my name and my face. It's crazy sometimes, but I'm so flattered. It's a good feeling.
Hilary: Lots of girls like really smooth-talking guys, but I like the ones who are really nervous to come up to you and a little shy. They're probably the nicest ones.
Hilary: Being with my family helped me a lot. You know, my sister, my mom and my dad had been really great.
Hilary: I go out to clubs sometimes, but I have a totally separate group of friends outside the business, friends who are not actors, and we go out, but we also know there's a front door and a back door, and there's one you don't get seen at. And I don't mean that in a mean way.
Hilary: I know I can handle dramatic roles, but I don't think I should have to play a young mother on crack to prove it.
Hilary: For somebody living in Middle America that lives a completely normal life with a normal job and normal clothes and normal school and normal family, it seems that these people aren't even real. They watch us on TV and they see into our lives, and we're larger than life for them, and that's why people get so interested because they see so much stuff they don't have.
Hilary: I'm drawing the gossip surrounding the celebrity, or the image the celebrity tries to push on us.
Hilary: Mom always tells me to celebrate everyone's uniqueness. I like the way that sounds.
Hilary: My friends are really great. And they're really supportive. I don't think that they really care anything about this stuff. I don't really have that many friends. I try and stick to a small group of people, and they go on tour with me and they come and travel with me and stuff like that. They know how hard it is for me to work sometimes and not just get to have that completely normal life.
Hilary: (about shopping) I think I have a little bit of mixed feelings about it, you know? Like, I definitely love shopping anytime. Nothing can stop me or get in the way. The things I don't like is trying to find a parking place and waiting in lines. Like, the lines will be forever! Or they'll be sold out of something that you really need to get... You know? But I think that, definitely, shopping anytime, doesn't matter if it's holiday or not, I love it.
Hilary: (about holidays) I like it. I think I'm always really happy for like, holidays to come and holidays to be over, you know what I mean? Like, there is a lot of stress that goes on. But I'm also, it's just like such a happy time to spend together, and then once it's over it's also a happy memory, you know? That you have another year down, and I'm ready to move forward and see what else is to come and what the new year is going to bring.
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