YouTube Charli XCX is leaving her Brat days behind her! At midnight on Friday (May 8), the 33-year-old Grammy-winning entertainer kicked off her new era by dropping her brand new single titled "Rock Music." "Me and my friends, we go out / We take pictures and make stuff together / And sometimes we cry / We kiss each other, real incestuous vibes," Charli sings. "(I knew you'd like that) / Yeah, we're so inspired / Basically all the time / Yeah, we're on to the next.