Speaking to MTV News, Taylor Swift has talked about her collaboration with Ed Sheeran and how they wrote together on her trampoline.

"I actually I wrote a song with Ed Sheeran on a trampoline in my backyard for the new album," she said.

"That's a song called Everything Is Changed. We, for real, [were] sitting on my trampoline in my backyard cause we had been writing a song and I was like, 'Hey, I just got a trampoline. You want to see it?' And so, he brought the guitar for some reason".

"We ended up writing an entire song out there. For portions of the song, [we were bouncing around] 'cause it's a trampoline and it's fun, and the combined maturity level of both of us is 8 years old" the singer added.

Swift is set to release her new album, Red, in October. The lead single, We Are Never Getting Back Together, is currently sitting high on the Irish charts, after debuting at No.4.

The 22 year-old also hinted at another collaboration on her upcoming album. "The song that I wrote with Ed Sheeran is a duet and actually there's another one that is a duet with my absolute favorite band. And I want to leave that as a secret for closer to when the album comes out . . . it's one of the songs I'm most excited about on this album."

Swift will perform at the MTV Video Music Awards later tonight in Los Angeles, alongside One Direction, Pink and Rihanna.