West tweeted that his actions were ego-driven and immature, and he would "never ever again in a million years do that. Sorry to let you down," MTV.com reported.
West said the morning after the incident he looked in the mirror and said to himself, "Grow up, Kanye… I'm ready to get out of my own way. The ego is overdone. I take responsibility for my actions."
Swift was making an acceptance speech for winning Best Female Video at the MTV awards ceremony when West rushed onstage and grabbed the microphone. West was widely criticized for his behavior.
In his Twitter apology, West said he had written a song for Swift, and he thanked Twitter's co-founders for "creating a platform where we can communicate directly."
West also blamed the media for making too much of the incident.
"The media has successfully diminished the 'receptive' audience of... KANYE WEST. ...taking a 15 second blip the media have successfully painted the image of the 'ANGRY BLACK MAN.' The King Kong theory. With the help of strong will, a lack of empathy, a lil' alcohol and extremely distasteful & bad timing ... I became George Bush over night," the entertainer wrote.
2014: The Year in Music [PHOTOS]