Billie Eilish won best new artist, song of the year, record of the year, and album of the year at the 2020 Grammy Awards.She is the second artist in history to sweep all four major categories in one ceremony.At just 18 years old, she also broke Taylor Swift's record as the youngest artist in history to win album of the year.Visit Insider's homepage for more stories.Billie Eilish just became the second artist in history to sweep all four major categories at the 2020 Grammy Awards.The teenager won best new artist, song of the year for "Bad Guy," record of the year for "Bad Guy," and album of the year for "When We All Fall Asleep, Where Do We Go'"The last and only time an artist won all four of these awards was Christopher Cross in 1981. The 29-year-old Texan rocker won big for his self-titled LP ' which controversially beat Pink Floyd's iconic "The Wall" ' and for its standout song "Sailing." It was the peak of his critical and commercial success.Eilish, who had already won earlier in the evening for best pop vocal album, seemed geniunely surprised ' and even a little irritated ' when she accepted her four major awards.Fans noticed that she was mouthing, "Please don't be me," when album of the year was about to be announced. She also appeared to yell "no" when she heard her name.'Please don't be me. Please.' Billie Eilish being genuinely disgusted by her own success is one of the most hilarious things I've ever seen at a major awards show. #Grammys pic.twitter.com/A7iSCVta2N' Joey Nolfi (@joeynolfi) January 27, 2020The genre-bending artist even said that she wanted Ariana Grande to win instead."Can I just say that I think Ariana deserves this'" she said during her acceptance speech. She went on to say something (presumably flattering) about Grande's album "Thank U, Next," but it was censored by the telecast."I'm not gonna waste your time. I'm really not. I love you. Thank you for this," she quickly concluded.Billie Eilish says she thinks Ariana deserves the album of the year award and Ariana's reaction is amazing #GRAMMYs pic.twitter.com/Zv320KmwKJ' Chicks in the Office (@ChicksInTheOff) January 27, 2020When Eilish and her brother returned to the stage to accept record of the year, they kept their speech remarkably succinct: "Thank you," they said in unison before exiting the stage."Thank you." In one of the quickest acceptance speech of the night, @BillieEilish and @finneas take the stage to accept the award for record of the year https://t.co/cRGxKFUAFO #Grammys pic.twitter.com/LQmSay7ZpY' The Hollywood Reporter (@THR) January 27, 2020Eilish co-wrote her debut album, released in March 2019, alongside her older brother and producer, Finneas O'Connell. The siblings recorded nearly the entire album in O'Connell's childhood bedroom.Eilish was 17 when the Grammy nominations were announced in December, making her the youngest artist in history to be nominated for all four major Grammy Awards. Now, at just 18 years old, she has broken Taylor Swift's record as the youngest artist in history to win album of the year. Swift previously won the award for "Fearless" in 2010 when she was 20 years old.Read more:Watch Billie Eilish's stunning performance of 'When the Party's Over' at the GrammysThe 20 best album of the year nominees that got robbed at the GrammysHere are all of the Grammy Awards 2020 winnersThis year's most important Grammy nominees, ranked by streamingJoin the conversation about this storyNOW WATCH: The bizarre history of the Yule Log Christmas special Click here to read full news..