WATCH: Lady Gaga Throws Up Onstage! Is This a Trend?

Is there a stomach flu going around on Twitter? That's the only explanation we can think of for two of the world's biggest pop stars, Lady Gaga and Justin Bieber, both vomiting onstage at recent concerts!

Source: http://www.ivillage.com/lady-gaga-vomits-onstage-during-barcelona-concert/1-a-492678?dst=iv%3AiVillage%3Alady-gaga-vomits-onstage-during-barcelona-concert-492678

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