Chris Martin working on U2 album?

New York: Coldplay singer Chris Martin is reportedly helping U2 with their new album. He was spotted in a studio with them here. The Coldplay frontman reportedly joined the Irish rockers - Bono, The Edge, Adam Clayton and Larry Mullen Jr. - at Electric Lady Studios, where they have been working on their 13th album with producer Danger Mouse, reports contactmusic.com. According to fan site atu2.com: "Our reporter saw Coldplay`s Chris Martin arrive, followed by Larry Mullen Jr. about two minutes later. "Shortly after that, a van arrived with three guitars - each with a white label that said `U2/Edge` - and our reporter actually helped bring the gear into the studio. He saw Larry and Chris Martin together in another room before heading back outside." IANS