Bono, The Edge collaborating on new musical

London: U2 star Bono and The Edge are to collaborate with `Once` director John Carney on a new musical film. `Sing Street` is based loosely on events from Carney`s childhood, and will centre on a boy who uses music to help him cope with moving from a posh private school to the inner-city, reportedly.

Bono and The Edge are slated to contribute songs and other musical elements to `Sing Street`, The Weinstein Company announced.

Carney is writing the screenplay, in addition to serving as director.

U2 won a Golden Globe earlier in the year for writing the song `Ordinary Love` for the Nelson Mandela biopic `Mandela: Long Walk to Freedom`.

The Irish rock group have previously contributed music to the films `Faraway`, `So Close!`, `Batman Forever` and `The Million Dollar Hotel`.

U2 are also currently working on a new studio album, although a release date has not been set.