"
American Idol" host
Ryan Seacrest is excited to have
Mariah Careyjoining the show's judges panel. Carey signed on last week for a
reported $18 million in the wake of
Jennifer Lopez and Steven Tyler's departures.Seacrest sat down for an interview Thursday with "
Today" host
Matt Lauer, and boasted about Carey's credentials. "She's got that five-octave range, she's got the whistle registry, which is that high note she can hit, 200-plus ...