American Idol Mariah Carey reportedly planning world concert tour 05/14/2013 "American Idol" judge and pop star Mariah Carey is planning her first world concert tour since 2004, sources told UsMagazine.com. Read More RELATED NEWS Mariah Carey to reportedly star in her own docu-reality series Former 'American Idol' in-house mentor Jimmy Iovine marries Liberty Ross Mariah Carey engaged to billionaire businessman James Packer after whirlwind romance TAGS: American Idol Mariah Carey
