John Travolta and Miley Cyrus are set to become unlikely duet partners, according to the movie star's wife Kelly Preston.

The Jerry Maguire star has revealed the two family friends will team up to voice characters in upcoming Disney film Bolt, and Preston thinks that project will be the first of many for the twosome.

Preston tells online gossip Marc Malkin, "Johnny may sing with Miley. We know Miley very well, and she's a sweetheart."

Travolta enjoyed pop stardom in the late 1970s when he was a hit in Grease, and Cyrus is a current pop sensation.