Sometimes the rhythm really does get you. Katy Perry was dancing so hard in Canada over the weekend that she fell and cut her leg so badly that it required stitches. "17 stitches later... Don't make fun of my dance moves tomorrow," she tweeted. "That's what got me here in the 1st place! Thanks for the souvenir Canada :)!"

Despite the injury, Katy performed yesterday on the Canadian TV show Live @ Much. She covered her ankle in a flesh-colored surgical stocking but still wore candy cane wedges on stage. "Thinking about getting a candy cane walker made for this performance coming up," she joked before the performance.

Now that's a trooper!