St. Vincent stopped by The Tonight Show Starring Jimmy Fallon to perform her newest single "Teenage Talk," which was used for the most recent season of HBO's Girls. The singer, aka Annie Clark, stood elegantly in front of a wall of young dancers, who showed off some hypnotic moves. It was a signature St. Vincent performance marked by crystalline vocals, heavy synths and a tinge of youthful awkwardness.

St. Vincent's newest single is a breezy ballad that recounts "the good old days" when life was about hanging out with friends.

"Well, that's just teenage talk / Pinky swear that you won't go changing / Drank so much that night / Carved the state of Texas in our forearms," Clark sang almost as if she is remembering an exact moment from her teenage years.

There were no effects drowning out the singer's voice, so fans who have yet to see Clark live were able to experience her gorgeous vocals. Check out the video below.

The song first appeared during the closing credits of Season 4's eighth episode, which was a pivotal one for the show's protagonist Hannah Horvath (Lena Dunham).

"I said to St. Vincent's people, 'We love Annie and she and Lena are friends. Is there anything laying around?' They sent us a demo of a song called 'Teenage Talk' that she hadn't released yet and it was amazing. Lena flipped for it," music supervisor Manish Ravel said.

St. Vincent released her self-titled fourth studio album last year. It became her highest charting album to date, reaching No. 12 on the Billboard 200. The artist ended up taking home the Best Alternative Music Album award at this year's Grammys. It was praised as one of the best albums of 2014 by multiple outlets -- Music Times ranked it No. 1 on its end of the year list.

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