Entertainment

Can Mariah reinvigorate 'Idol'?

QMI Agency
Presenter Mariah Carey speaks onstage during the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California. Michael Buckner/Getty Images For BET/AFP

Presenter Mariah Carey speaks onstage during the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California. Michael Buckner/Getty Images For BET/AFP