Justin Bieber might have been totally embarrassed when he puked during the first show of his "Believe" tour in Arizona on Saturday, September 29, but he's not the only superstar who's gotten sick while performing onstage.
Actually, a handful of big singers have thrown up during their concerts, whether it's in front of a live audience, backstage or right before the show. That's right, stars like Rihanna, Kings of Leon's Caleb Followill, Adele and even Lady Gaga have tossed their cookies while thousands of screaming fans looked on. (Now that can't be fun).
So Bieber, no worries! Lots of people barf onstage -- at least you were man enough to keep singing. The show must go on ...
Take a look at these 8 celebrities who couldn't keep from vomiting: