It was a great night to be Taylor Swift.
After opening the Billboard Music Awards with the debut of her new videofor "Bad Blood," the songstress topped the show with eight awards, including Top Artist and Top Female Artist.
Following Swift with three awards each were Sam Smith, Iggy Azaleaand Pharrell Williams. Smith, who accepted via video from the hospital where he's recovering from vocal surgery, took home Top Male Artist, Top Radio Songs Artist and Top New Artist. Azalea received Top Streaming Artist, Top Rap Artist and Top Rap Song, and Williams was awarded Top R&B Artist, Top R&B Album and Top R&B Song.
The show, which was hosted by Ludacris, and Chrissy Teigen, also featured a ton of big debut performances, like Iggy Azalea and Britney Spears' new collaboration "Pretty Girls," and Meghan Trainor and John Legend's soulful "Like I'm Gonna Lose You."
Mariah Carey also returned for her first Billboard Awards performance in 17 years with a medley of "Vision of Love" and her new single "Infinity." Another fun moment was when Molly Ringwald introduced Simple Minds to sing their former No. 1 Hot 100 hit "Don't You (Forget About Me)" for the 30th anniversary of The Breakfast Club.
Kanye West closed the show and was reportedly booed when sisters-in-law Kendall and Kylie Jenner introduced him, and throughout his heavily bleeped performance of "All Day" and "Black Skinhead."
Check out the full winners list here.