BARCELONA, Spain - Famous pop star, Lady GaGa, threw up multiple times on stage during a concert over the weekend in Barcelona, video uploaded Sunday appears to show.

Gaga was performing “The Edge of Glory” with a backup dancer when she appears to lose her lunch as many as three times.

Gaga, now in London, had a laugh at her own expense on Twitter: "Was praying nobody saw but actually its quite a good laugh if u need one! Check out Lady PukeGA doing Swan "Vomit" Lake."

The “Born This Way” singer is not the first one to "lose it" on stage.

Justin Bieber vomited during a concert in Glendale, Ariz., in late September. The 18-year-old Bieber blamed the incident on drinking too much milk.