Yes, it's true. Justin Bieber threw up on stage while performing "Out of town girl", during his Believe tour, and...... it was milk. YIKES! But it would be funnier if he threw up on the Beliebers. They would have something to remember in the next 10 years, when the name of Justin Bieber wouldn't be associated with the word popstar. FYI, I'm not mean, I'm honest. Sorry Beliebers, but the truth is harsh, this is definitely what will happen, since the video of him throwing up is the proof of his lip syncing.