The top 6 dancers took the stage to dance for your votes! Who will make the top 4? Who were the All-Stars? Guest judges Christina Applegate and Lil' C joined Mary Murphy and Nigel Lythgoe to see who makes it through!
While So You Think You Can Dance revs up to pick it's Season 8 winner, Cat Deeley wanted to get as many people as possible to tune in by stopping by The Late Show With David Letterman on August 2, 2011 in New York City.