How did justin bieber breack his lag?

Answer 1

Well he broke his leg on stage after backstage Taylor Swift Said To Him "Good Luck, Break a leg!" Then after that he fell off stage then he got back up on stage and finished the song and went backstage again and said he had broke his foot and since Taylor Swift Said "Break a leg" He kind of did and told Taylor that he normally does on stage what Taylor says to him backstage. :)