Selena Gome
And Selena will no doubt be kicking herself as it happened right at the end of her performance of the track - ironically titled Slow Down.
Selena, 21, gave an energetic performance of the track and impressively held herself upright throughout in platform boots.
As both feet failed to rejoin the edge of the stage after one last jump, the dainty singer slipped all too easily to the platform below.
http://www.youtube.com/watch?v=o58R404KP0w
