Pink's 'NSFW' Performance, Ruess' Pornstache At The Grammy Awards

'I support it, even if it's NSFW,' 'Girls' creator Lena Dunham tweets.

Pink flew sky-high during her Grammy Awards performance Sunday night (January 26). The singer did a medley of some of her most recent hits, and once again descended from the rafters for the mash-up of "Try" and her Grammy-nominated "Just Give Me a Reason."

She first did her aerial dancing routine during "Try," flying high above the audience and somehow performing both vocal and physical acrobatics in the process in nothing more than a skin-tight black leotard, proving that everywhere she goes she's bound to have a #covermoment.

When she did eventually hit the stage, she finished out the moving track and transitioned into "Just Give Me A Reason," during which she was joined by Nate Ruess from Fun., who appears on the emotional ballad alongside the big-voiced diva.

While fans will certainly be talking about Pink's ability to sing and fly at the same darn time, it was Ruess who just might steal the headlines from the pop princess. During their performance, the Fun. lead singer debuted a new look. In addition to wearing a dapper suit, he sported a mustache. And, rest easy, the facial hair is Lena Dunham-approved.

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"Here comes Pink with Nate's new pornstache," the "Girls" star and girlfriend to Fun.'s Jack Antonoff tweeted. "I support it, even if it's NSFW."

Here comes Pink with Nate's new pornstache. I support it, even if it's NSFW.

— Lena Dunham (@lenadunham) January 27, 2014

The duo not only performed the single, but were also up for Song of the Year and Best Pop Duo/Group Performance for the song, off Pink's 2012 album, The Truth About Love.

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