Alvin and the Chipmunks, the Squeakuel opened December 23, 2009. I went to see it opening day to check out what Quest Crew does in the show (what I do for this site!). Quest appears in the last half hour of the film billed as Lil Rosero, a high school dance team competing for a $25,000 prize. They only dance for about a minute, but the guys are also on-camera in the ending crowd scenes. Hok fans will be especially pleased with his prominent stage position behind the winning rodents.
Bonus: TheBeatFreaks.com reports that Shorty was the dancer for Chipette Eleanor (the one in green) in the dance sequences. They didn't take advantage of her talent or give her credit (at least in IMDB), but congratulations! And thanks for the tip, Ravoo!