• Katy Perry makes Billboard history, beating out Mariah Carey!  KATY PERRY IS #1

• Meet the host of this year's…MTV MOVIE AWARDS!

• Check out the new shaved hair-do on…DEMI LOVATO

• Which Real Housewives of New Jersey cast member has pleaded…GUILTY FOR FRAUD?

• Justin Bieber shows off his muscles and his tattoos while in…THE SLAMMER (pictures)

• Apparently, Selena Gomez didn't learn much during her stay in rehab!   FELL OFF THE WAGON!

• What did Katy Perry think of her kiss with…MILEY CYRUS? (video)

• Watch Avril Lavigne freak out and run off stage!  What…SPOOKED AVRIL? (video)

TRENDING VIDEO OF THE DAY:

Want to know what it's like to have kids?  WATCH THIS!!