Justin Bieber gets sick performing live on stage in Arizona during 'Believe' tour

Justin Bieber gives new meaning to the saying: "The Show Must Go On."

The pop star got sick during the kick off concert of his "Believe" tour Sunday night in Arizona. according to the Hollywood reporter, he actually threw up on stage not just once but twice after taking a brief break, Bieber returned to the stage and explained to his fans what was going on wasn't feeling well.

Bieber continued performing for the show in Arizona for his fans. Later that night JB tweeted a picture of himself saying he was resting up for the next show in next city.