Justin Bieber has revealed that he penned a song with Taylor Swift for his upcoming album Believe.

Speaking to Vodafone Big Top 40 on the U.K.’s Capital FM Radio, the Biebs said Believe will feature many styles of music.

“With my music it doesn’t only stay in a box,” Bieber said. “Everything is so different and that’s why I’m so happy with this album.

“Everything doesn’t sound the same, everything’s different and [after] each song you won’t expect the next song to happen.”

Other stars confirmed to appear in Believe include Usher, Kanye West, Drake and Timbaland.