Kanye's Backstage Clash with Taylor Swift's Mom

Update

Minutes after Kanye West stormed the stage as she accepted her Video Music Award, a teary-eyed Taylor Swift pulled herself together to perform her award-winning song, "You Belong With Me," atop a cab parked in front of Radio City Music Hall.

But West only continued the drama by angering the entire Swift family. After Swift's mother, Andrea, asked to speak to the rapper and, a source tells PEOPLE, "tore into him," the rapper continued to maintain that Beyoncé's "Single Ladies" should have won Best Female Video instead and made no formal apology.

Kanye West on 'The Jay Leno Show' tonight: Will you watch?