It’s hard to imagine there are many 21-year-olds having a better summer than Molly Santana. When I join our call, the rising rapper, whose past few months have included a smattering of festival appearances, viral collabs and cosigns from everyone from Don Toliver to Alysa Liu, is still recovering from her previous night’s show in London. “That’s why my voice sounds a little crazy,” she tells me, apologising through herhellip;read more raquo;