Marcus Mumford has teamed up with Phoebe Bridgers on a new track called ‘Stonecatcher’ – you can listen to it below.The song appears on the Mumford & Sons frontman’s debut solo album ‘(self-titled)’, which came out today (September 16) via Island.Bridgers provided backing vocals on the delicate, stripped-back number. “Oh, my God, we’re here again/ It all slows down to lines in the sand,” the pair sing together in the understated chorus.During a recent interview with NME, Mumford explained that the ‘Punisher’ singer-songwriter has been his “friend for a long time”, adding: “We’ve had lots of conversations which have been really helpful to me over the years.”He continued: “I asked her whether she’d be down to come and hear something and whether she wanted to sing on it.