Kanye West VMAs 2010: Rapper Acknowledges Last Year's Bad Behavior

NEW YORK (CBS/AP) Kanye West acknowledged his bad behavior Sunday night in a performance that closed the MTV Video Music Awards.

His song came after Taylor Swift took to the stage earlier in the evening and delivered a ballad inspired by her run-in with West at last year's VMAs.

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West didn't address the Swift incident directly, but while onstage, he rapped and sang a song that mocked the boorish behavior that has upstaged his music.

"I always find something wrong; you've been putting up with my (expletive) for too long," he said, before launching into the an unprintable chorus, which included the line: "Let's have a toast to scumbags."

West was reportedly booed by some members of the audience prior to his performance.

Swift's song, "Innocent," offered an olive branch to West. The song will appear on her upcoming album, "Speak," which is due in October.

"Everyone of us has messed up, too ... I hope you remember today is never too late to be brand new," she sang.

The 20-year-old's poignant and powerful ode didn't criticize West. Instead she sympathized with his difficult time in the spotlight and West's own admissions that his ego has often gotten in his own way.

"Thirty-two and still growing up now; who you are is not what you did," she sang softly, adding: "You're still an innocent."

She then appeared from the audience to skip offstage.

The stage for both songs was set last year, when West interrupted Swift's acceptance speech, saying her trophy should have gone to Beyonce. The incident left Swift with hurt feelings, but West was the one who was seriously damaged, as intense backlash made him Mr. Unpopularity.

West recently detailed the negative effects of the debacle on Twitter. He tweeted early Sunday that he was feeling positive energy, and said he wished his mother was still alive to see his performance.

"It's funny," he wrote on his Twitter account. "I Can't believe it's been a whole year but can't believe all that's happened within this year at the same time."