Justin Bieber Suffers 'Busted' Knee During Concert

Justin Beiber

Justin Bieber has a bit of a boo-boo.

The pop star, 16, injured his knee during his concert Thursday night in Cleveland, Ohio.

"Busted my knee last night in the middle of the show," Bieber Tweeted. "Not fun. Finished the show with a sweet limp."

But the Biebs is "feeling blessed" after a little TLC from mom.

"Knee is swollen today but all good," he wrote. "Spending quality time with @studiomama."