September 2012: Bieber Blows It
The last thing an excited young Belieber expects at a show is vomit, but that's what many of his unfortunately situated fans saw at an Arizona show back in the fall of 2012. Halfway through a performance of "Out of Town Girl," Bieber doubled over and puked all over the stage. After an awkward apology to his audience, he tweeted "And…Milk was a bad choice! lol." Gross, Justin, just gross.