Belle and Sebastian have revealed the music video for their brand new track, 'Sister Buddha'. The song is set to appear on the Scottish group's upcoming original soundtrack for Days of the Bagnold Summer - their first release since How to Solve Our Human Problems last year. The album will be released on September 13, via Matador.

Days of the Bagnold Summer, directed by The Inbetweeners star Simon Bird, is based on the graphic novel from Joff Winterhart, and is set for release in 2020.

Belle and Sebastian's soundtrack features 11 new songs, as well as re-recorded versions of 'Get me Away From Here I'm Dying' from 1996's If You're Feeling Sinister and 'I Know Where the Summer Goes' from 1998's This Is Just a Modern Rock Song.

In a press release, frontman Stuart Murdoch revealed that one of the tracks set to appear on the album, 'Safety Valve' is older than the band itself.

"It's maybe 25 years old," he explains. "The only time I can remember ever playing it was in a coffee shop with a friend of mine, and people scratching their heads. There was only a verse and a chorus, so I went back to it, and revised the words. It's a simple song about being over-reliant on a particular person - probably my girlfriend at the time. But it seems to work OK here, too."

Take a look at the music video for 'Sister Buddha' below:

The original soundtrack for Days of the Bagnold Summer is available to pre-order now.