Alicia Keys, Katy Perry Copy Bruno Mars' Hairstyle!

Credit: Jason Merritt/Getty Images (2); Jon Kopaloff/FilmMagic

Tress triplets!

At the 2012 Grammy Awards in Los Angeles Sunday, both Alicia Keys and Katy Perry hit the red carpet looking like Bruno Mars' hair twins!

Keys, who worked a Alexandre Vauthier dress paired with a giant gold-plated statement necklace, pinned her dark brown hair into a voluminous pompadour while Perry, who donned an Elie Saab gown, wore her bright blue locks in the same sky-high style.

Since Mars hit the Hollywood scene with his "Nothin' on You" single, he's been styling his black hair into his now iconic coif that's halfway between a Jersey Shore blowout and James Dean's greaser 'do.

During the evening, Mars hit the stage to sing his new single "Runaway Baby" in a 1960s-inspired performance. His album, Doo-Wops & Hooligans, was up for the Album of the Year and Best Pop Album categories, both of which were taken home by Adele.