Lady Gaga Vomits on Stage

Lady Gaga Pulled off a " Bieber" as she vomited several times onstage  during a performance in Barcelona recently.

In a video below, the 26-year-old can be seen slinking down a staircase with her back to the audience during a performance of "Edge of Glory" .

 Then, as she makes her way across a stage plank toward a dancer, she abruptly throws up at least four times.

At one point, her backup dancer gently pats her on the back as she tries to hurl inconspicuously.

But you gotta give it to Mother Monster: Ever the pro, she barely missed a beat and continued with the performance.

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