Billie Eilish took the Grammys stage on Sunday for a heartfelt performance. The 18-year-old star stepped out to sing her dreamy tune "When the Party's Over" from her album When We All Fall Asleep, Where Do We Go?. Rocking a glimmering Gucci ensemble, the songstress wowed the audience with her beautiful vocals while her brother and producer Finneas O'Connell played the piano.
No doubt it was a big night for Eilish, who won five awards. While her chart-topping tune "Bad Guy" won two honors — record of the year and song of the year — her debut album, When We All Fall Asleep, Where Do We Go?, snagged the awards for best pop vocal album and album of the year. She also earned the title as best new artist, and O'Connell won producer of the year. Eilish's accomplishments didn't end there, either. Her wins for album of the year, record of the year, song of the year, and best new artist made her the youngest person to take home a prize in the "Big Four" categories. In celebration of Eilish's unforgettable evening, look ahead to watch a sneak peek of her performance!