Quest (Hok, Domonic, Ryan) are in Snoop Dogg's new video. It is called "I Wanna Rock." It is the same song Snoop performed on the finale.
Sandra from season 1 is in Cascada's "Evacuate the Dancefloor" video. She is also in The-Dream's "Rockin' That Thang" video. Both were huge videos in 2009!