Stars from the two genres have a history of conflict.
Plus, pics of Kim K., Rihanna, Andre 3000, J-Hud and more.
Pop singer among second wave of stars targeted by hackers.
Plus Rihanna gives CBS the finger, and Shad Moss quits music.
Singer talks friendship with his ex-girlfriend and potential collaborations in the future.
August Alsina is the latest celeb to shut down a show.