SO YOU THINK YOU CAN DANCE: L-R: All-star dancer Marko Germar and top 6 contestant Witney Carson perform a Jazz routine to "No Nothing" choreographed by Ray Leeper on SO YOU THINK YOU CAN DANCE airing Wednesday, September 5 (8:00-10:00 PM ET/PT) on FOX. ©2012 FOX Broadcasting Co. Cr: Mike Yarish