Brothers in vest-wearing Justin Timberlake and Marcus Mumford collaborating on tracks for the new Coen brothers movie

Vest twins Justin Timberlake and Marcus Mumford have collaborated on at least one track for the new folk-tinged Coen brothers movie. Timberlake stars in the film, Inside Llewyn Davis, with Mumford’s wife, Carey Mulligan, so the pairing’s not that outlandish in theory, but should no doubt alienate all sorts of Mumford-haters when it comes out.