Up until now, pop superstar Justin Bieber had only tweeted a short sentence explaining his on-stage vomiting blaming it all on the milk! But now, Biebs says, it was because of a combination of milk mixed with spaghetti and meatballs on the side that made him have to heave!! <br /><br />For more Hollywood news and gossip:<br />http://www.youtube.com/hollywoodbackstage<br /><br />Subscribe at: <br />http://www.youtube.com/subscription_center?add_user=HollywoodBackstage<br /><br />Like us on Facebook:<br />http://www.facebook.com/hollywoodbackstage<br /><br />Follow us on Twitter:<br />https://twitter.com/#!/HollywoodBstage
