Gasp! Mariah Carey pulled the ultimate fashion don't—she wore the exact same dress to the season premiere screening of American Idol that Jennifer Aniston already wore on the red carpet three months ago!
Watch the video above to see a side by side comparison and get the details on the coveted dress!
Now it's your turn to decide who wore it better—Mariah or Jen! Tell us in the comments section or tweet @OKMagazine!