Katy Perry, Nicki Minaj

Lester Cohen/WireImage.com; John Shearer/WireImage.com

Showing up on the red carpet in the same dress is a Hollywood no-no. And rocking matching hair hues isn't much better.

Katy Perry and Nicki Minaj showed up to the Grammy Nominations Concert Live last night looking like they both take styling tips from Strawberry Shortcake. 

Of course, the pink 'dos are nothing new for either singer—plus, Katy wore hers up while Nicki rocked a Barbie-style wig—but it's hard to find enough room on the red carpet for two identical "notice me!" hair colors. 

So who wins bragging rights for her Pepto hair  and who should head back to the color wheel to try something different?

Katy vs. Nicki Pink Poll
Whose cotton-candy hairstyle do you like best?
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