From Oops to Ooh-La-La!: Dancing with the Stars's Jaw-Dropping DancesRelive season 12's sexiest moments – sweet kisses! sultry tangos! – and the biggest ballroom blunders

OOPS!

While performing a rumba to "Over the Rainbow" on a night of personal stories, Maksim Chmerkovskiy and Kirstie Alley tumbled to the ballroom floor. "My thigh just gave out. I'm so sorry. I'm so sorry," Chmerkovskiy said of the spill. "It has nothing to do with her."