Stefani sings back-up for Rossdale

Gwen Stefani has given her husband Gavin Rossdale a little musical help - by providing backing vocals for his upcoming album.

Rossdale has taken a break from his band Bush to record an album with his new group Institute, and he's decided to make the most of his strong connections with the No Doubt frontwoman, who recently launched a solo career.

He says: "This is the second record she's sung on with me. We do keep (work) separate. But if one of us is free, we pull each other into the studio."