Justin Bieber injured at Cleveland concert, puts on a brave face

bieber-injury.jpg Justin Bieber was performing in Cleveland on Nov. 11 -- wearing, we can only imagine, that white jump suit and purple hoodie that have seen way too much use this year -- when he started limping for no apparent reason.

TMZ reports the follically blessed singer injured his knee during the middle of the show. And though details are still forthcoming about the state of the unfortunate Bieber knee, "his people" are hoping it's just a sprain.

We don't blame them. Bieber bones have a bad history of holding up under duress. He started out 2010 in an air cast after breaking a foot during a London show.

But even Bieber isn't brave enough to perform with a broken leg -- is he?