Charli XCX "Need Ur Luv" (live on 'Letterman')

Charli XCX 'Need Ur Luv' (live on 'Letterman')
UK popster Charli XCX dropped her latest effort Sucker earlier this week (via Neon Gold/Atlantic Records) and she's been spending the week celebrating in New York City.

Following an appearance on Saturday Night Live, the singer served as the musical guest on The Late Show with David Letterman last night (December 16). Sporting some retro-inspired bedroom attire, Charli XCX delivered a high-energy rendition of album cut "Need Ur Luv."

She spends most of the set writhing atop on a piano played by Vampire Weekend's Rostam Batmanglij, but neither one misses a note. Watch the performance below.