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See Our Clooney Wedding Cover. Plus: Exclusive Details!

  • CHRISTINA VS. MARIAH photo | Christina Aguilera, Mariah Carey

Credit: Tony DiMaio/Startraks; Fox/Getty

Published: Thursday August 01, 2013 16:35 PM EDT

2013

CHRISTINA VS. MARIAH

First come the matching outfits – flirty pink Alaïa minis and major heels – then comes the album of duets and subsequent world tour. That's how it works, right? Yes? Please?