Credit: STILL

American Idol’s Top 10 was revealed last night on March 7, but we only had two leading ladies in mind after Mariah Carey took her place at the judges’ panel. The pop diva’s “girls” were vacuum-sealed into her racy black dress, and on display for the world and Ryan Seacrest to see.

This daring look reminded us of our other favorite diva Christina Aguilera, who often refers to her twins as The Voice’s fifth and sixth judges.

Though Christina is taking Season 4 off from the hit reality show (returning on March 25, 2013), we’ll never forget her cleavage-happy looks, especially as they swivelled around in her big red chair.  

Her most memorable look was the orange Roland Mouret Guinevere sheath dress from Season 2, which showed off her weight loss and also put the ladies on display for Blake Shelton (and America) to drool over.

We’ve already pitted these two legends against one another as singers, divas, and judges, but in the battle of the boobs, which lady will come out victorious?

Christina has proven on the first three seasons of The Voice that she has no problem flaunting her assets, but Mariah has really embraced her chest in her debut season on American Idol.

But you be the judge! Who has the best cleavage look: Mariah or Christina? Vote below!