Fashion Faceoff: Jennifer Aniston vs. Mariah Carey

Raechal Leone Shewfelt
Shine from Yahoo! Canada

Who knew Jennifer Aniston and Mariah Carey were both fans of "Beverly Hills, 90210"?

The two recently stepped out in a swanky gown that's similar to the one both Brenda and Kelly wore to the spring dance in a 1991 episode. Clearly, it’s still a popular style!

What they wore: A floor-length, strapless black-and-white Valentino dress.

When they wore it: Aniston, 43, wore the dress for the 2012 American Cinematheque Tribute to Ben Stiller in Beverly Hils in November. The 42-year-old Carey rocked the frock at the season premiere of "American Idol" in L.A. on January 9.

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How they styled it: Not surprisingly, Aniston kept it simple – a matching Valentino clutch was her most prominent accessory. Carey added dramatic diamond earrings by Joan Boyce and a high ponytail.

See more: Christina Aguilera vs. Mariah Carey in style showdown

Judge's scorecard: Aniston consistently dons red carpet looks that are lovely, but a little too predictable. Meanwhile, her competition receives a deduction for showing a little too much cleavage, although she earns kudos for pulling her tresses up and off her shoulders. Who do you think wins the crown in this Fashion Faceoff?