ET has learned why Demi Lovato decided to perform their song, 'Heart Attack,' at the American Heart Association's event in NYC. Miley Cyrus, Nicki Minaj and Dierks Bentley are all hoping to score ...

Guitarist Nina Strauss has heaped praise on Demi Lovato for embracing her rock roots and hailed her "the real deal". Against the odds, Prince Harry has won a landmark victory 13 Fascinating ...