"So You Think You Can Dance" Season 7 Premiere Party at Trousdale in West Hollywood,Ca USA May 27, 2010 - Cat Deeley, Nigel Lythgoe, Adam Shankman, Mia Michaels, Melody Thornton, Mark Kanemura, Ariana Grande, Tyce Diorio, Chelsea Hobbs, Adrianna Costa, Erin Cummings and Jill Wagner. Interviews by Arista Ilona
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