Mariah Carey, one of the best-selling female recording artists of all time, has joined American Idol... and her very first promo photo has officially been revealed! The 42-year-old star will reportedly be earning $18 million for one year with the show, but she’s certainly got the credentials to back up that astronomical sum. The five-time Grammy Award-winning songstress has sold more than 200 million records worldwide and has more #1 songs than any solo artist in history! Are you excited to see Mariah join the judges’ panel when Idol returns in January?
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