Miley Cyrus & Taylor Swift To Duet At The Grammys

[Brian Damage]

Teen sensations Miley Cyrus and Taylor Swift are to team up for a duet at the Grammy Awards on Sunday. The two singers will collaborate on Swift's song "15", which the country star wrote when she was in high school.

Swift says, "We were trying to figure out different things that could be cool... I wanted to play one of my songs, "15", and we were thinking about it. We all kinda came to the consensus, 'Wouldn't it be cool if Miley was up there and we were singing together?' And she said yes and we're real excited about it."

And Cyrus couldn't wait to start rehearsing the song in Nashville, Tennessee yesterday: "If you listen to the song, the lyrics are very inspiring... I think this song is very much, kind of, giving our advice and showing how powerful you can be if you have, like, a good friend... This song is pretty perfect for the Grammys."

The teen pair has become close friends in recent months - and both share Jonas Brothers heartbreak because both have been dumped by a member of the boy band.

Swift says, "We've known each other for a while... We've completely been there for each other."