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Gaga's Puke and Rally

Following in Bieber's footsteps, Lady Gaga vomited while performing in Barcelona Sunday. But the superstar kept on going, as though nothing had happened!

10.09.12 12:14 AM ET

Following in Bieber's footsteps, Lady Gaga vomited while performing in Barcelona Sunday. But the superstar kept on going, as though nothing had happened!