John Mayer's new duet with girlfriend Katy Perry has been revealed.

The US singer has teamed up with his significant other for the track 'Who You Love' on forthcoming new album 'Paradise Valley'.

The record is due to hit shelves on August 19 in the UK and a day later in the US but it has been officially previewed online already.

'Who You Love' sees Mayer and Perry trade verses before they combine in the song's chorus.

Perry meanwhile is due to release her own new album 'Prism' on October 22, but she previously confirmed that Mayer would not feature on the record.