According to an interview with Joel D. Amos of SheKnows in March 2010, Jeff's funniest/sweetest moment from a young fan was when he was the only Wiggle mentioned by name in the original 1993 Wiggle Time video, and a fan called the other Wiggles Red Jeff, Yellow Jeff, and Blue Jeff.
(Jeff was renovating his home in 1991 when he gets a phone call from Anthony Field, who invites Jeff to help with some keyboard parts on a new album project called The Wiggles.)Jeff: Sure, but how long will it take?
Anthony: Aw, just come down and when you're finished, you're finished.
Jeff(the famous fan he's been most excited to meet): Not only did we get to meet Shaquille O'Neal a couple of times, but he got up on stage to sing Hot Potato! Sarah Jessica Parker and Matthew Broderick were really lovely people. Greg loved meeting Chris Rock, who has come to a lot of our shows.