Lots of big stars were in New York on Sunday for the MTV Video Music Awards. Jay-Z teamed up with Alicia Keys to perform.
Kanye West caused a stir when he interrupted Taylor Swift's acceptance speech for best female video. He said Beyonce should have won.
There were lots of tributes to Michael Jackson. Madonna gave a speech saying: "It seems like a whole new generation of kids has discovered his genius."
MJ's sister Janet recreated the dance moves from their duet Scream. The track was big news back in 1995, and is the most expensive music video ever made.
Lady GaGa accepts an award for best new artist from Eminem and comedian Tracy Morgan. She also picked up two other awards - but how did she know where she was walking?
Green Day pick up their award for best rock video for their song 21 Guns. They won three awards in total - the same as Lady GaGa and Beyonce.
Beyonce put on an amazing performance. The artist picked up best choreography and best editing for Single Ladies.
And later in the evening Beyonce won the video of the year award too. She called Taylor Swift back onto stage and let her finish her acceptance speech. Awwwww!