Watch: Robyn Sings on 'Gossip Girl'

Singer performs string-quartet version of 'Hang With Me' in a party scene.

The characters on Gossip Girl are known for their extravagant lifestyles — so it's no surprise that when they throw parties on the show, they manage to snag some of the hottest acts around. Last night's episode featured Swedish pop siren Robyn performing performing the string version of "Hang With Me" (from Body Talk Pt. 1 , rather than the dance version on Pt. 2 ) at the birthday party of Blair Waldorf (Leighton Meester). (Of course, the characters on the show still found time to argue during Robyn's performance.)

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Robyn follows in the footsteps of Lady Gaga, whom Blair hired to perform at an NYU party last season, and Sonic Youth, who performed at the nuptials of Lily van der Woodson (Kelly Rutherford) and Rufus Humphrey (Matthew Settle). Robyn's "Dancing on My Own" was also used as background music for another scene.