Global has signed up a stack of pop stars to appear in a new marketing campaign for its Capital Radio brand. And why the hell not? Who doesn’t love some pop stars? No one, that’s who.Among those taking part are Ed Sheeran, Dua Lipa, Jonas Brothers, Stormzy, Niall Horan, Anne-Marie, Tom Grennan, Raye, ArrDee, Leigh-Anne Pinnock and Adam Lambert.They all feature in ads that will pop up on both TV and social media over the next month.