The first winner of the night, Taylor Swift for best female video, was victim to this when she was rudely and quickly interrupted by Kanye West, who cut off her acceptance speech. He stole the microphone to announce that fellow nominee Beyoncé had “one of the greatest videos of all time,” in “Single Ladies.”

For her part, Beyoncé appeared shocked by the outburst and the crowd booed the rapper. Off-camera, when West returned to his seat, audience members gave a still-stunned Swift (who was ushered off the stage before finishing her speech) a standing ovation.

Stars watching the show and tweeting immediately posted their thoughts on the incident. “Kanye needs to learn how to wait his turn,” Zac Hanson wrote. “I am sure he will get plenty of mic time to say something stupid later in the show.”