Rumors are going around that Justin and Selena call it quits AGAIN! And that Justin Bieber took his shirt of while performing on stage Saturday in Chicago for the Jingle Ball. The reason the two went their opposite ways is because of Justines friendship with her Ex Nick Jonas! This isn’t the first time J.B has tried to get Selenas attention with shirtless poses.. Remember his Instagram photo shoot of sad faces and also shirtless poses…