TAYLOR SWIFT TO SING A SONG ABOUT KANYE WEST ON MTV'S VMA'S!

Be warned, Kanye: Taylor Swift has written a song about you, and she's singing it at Sunday night's MTV Video Music Awards.
Kanye West marred the country superstar's win for Best Female Video last year when he got on stage and said it should have gone to Beyoncé.

Swift wrote a song about the experience earlier this year, and a source familiar with the show said Saturday the 20-year-old will sing it at the VMAs, which will be aired live on MTV.

The song is on Swift's upcoming album, "Speak Now," due out next month. The source said Swift performed it during a secret rehearsal in Los Angeles for the VMAs on Friday.

Though the West-Swift moment only lasted a few minutes, it has endured for what seems to be a lifetime.

It became a cultural watershed moment and gave West the most intense backlash of his career, despite the apology he later delivered.