Katie Holmes is appearing on So You Think You Can Dance this evening, and we've gotten a sneak peek at an interview she did with Cat Deeley for the big show — ICYMI, we're giving away tickets to the season finale! The ladies chatted a little about Katie's Judy Garland inspiration and her new charity, which she started with SYTYCD's Nigel Lythgoe. We have yet to see Katie's actual moves, so tell us — will you tune in to see Katie dance?