Suri Cruise was in the audience to watch Katie Holmes as a guest judge on So You Think You Can Dance in LA last night. Katie wore a cute Lacoste and Malandrino dress for the occasion. Katie's a familiar face at the studios, having performed a solo on the show's 100th episode back in 2009. The final four contestants, Sasha, Melanie, Marko, and Tadd, each performed four choreographed routines with Katie, Mary Murphy, Kenny Ortega, and Nigel Lythgoe weighing in after each round — if you missed the action check out our recap of the So You Think You Can Dance semifinals. Katie was there to give her opinions, though earlier in the week, it was she who showed off her own moves on Late Night With Jimmy Fallon. Self-professed car dancer Katie gave Jimmy a sample of the upper body moves she busts out behind the wheel. Suri inherited her mom's love of fancy footwork, as the little one is frequently seen in a ballet costume. Tom Cruise likewise shakes it in the upcoming Rock of Ages.