During "Out of Town Girl," the 18-year-old sensation turned his back to the crowd, hunched over, puked, then ran for the side of the stage. When he returned, Justin asked the adorning crowd, "Will you love me even though I’m throwing up on stage?” according to PopCrush.com.
The "Boyfriend" singer took to Twitter Saturday night revealing the culprit of the incident. "Milk was a bad choice!"
Watch the video obtained by TMZ.
Pop star Justin Bieber opened his "Believe" tour in Glendale, AZ, where the singer got sick mid-song and threw up onstage.