Season 1 Co-Host Brian Dunkleman came back for the first time since his departure, and helped Ryan introduce the Judges.
Throughout the show, there were a number of video messages sending congratulations to the show. They were: President Barak Obama, Season 10-11 Judge Steven Tyler, Season 12 Judge Niki Minaj, and Season 9 Judge Ellen Degeneres.
This episode's Twitter hashtags were #IdolFinale, #AintYourMama, #TeamTrent, #TeamLaPorsha, #HungOnIdol, and #CarrieOnIdol.
Season 10 contestants Naima Adedapo, Paul McDonal, Haley Reinhart; Season 12 contestants Devin Velez, Janelle Arthur; and Season 13 contestant Rayvon Owen, were in the audience tonight.
In order to determine who would go first, during the week, each contestant picked a number from the hat, and Trent got number one.
The Group Number was "Stole the Show" by Kygo Ft. Parson James.
There were no video clips before the second and third rounds.
Before being eliminated, Dalton sang "Strike a Match", which would have been his single had he won the competition.
The Opening credits had a longer version of the theme than normal for this season and showed some previous versions of the logo.
This episode's Twitter hashtags were #IdolFinale, and #IdolTop2.
Keith Urban performed "Wasted Time".
During MacKenzie's recap montage his song "Roses" played.
Before being eliminated MacKenzie sang "Hallelujah" by Leonard Cohen.
The families of the contestants sat in The Lounge tonight.
Celebrity Chef Gordon Ramsey was in the audience tonight.
This episode's Twitter hashtags were #IdolFarewell, #MacKenzieisHome, #DaltonisHome, #TrentisHome, #LaPorshaisHome, #IdolTop3, and #WastedTime.
After elimination a montage was shown of Sonika with her studio version of "Loved Me Back to Life" by Celine Dion.
This week's Co-Mentors were Steven Van Zandt and Sia. This is the second time Steven has Co-Mentored.