Capaldi strolled onto the stage, taking in the view and raising a peace sign to the sky. "My name is Lewis Capaldi and I'm [expletive] back, baby." "Glastonbury, I'm really sorry," the singer said as that set drew to a close. 'Welcome back, brother'Speculation about his Glastonbury performance intensified on Friday morning, after he released a rousing comeback single that addressed his struggles. Friday's Glastonbury set marks his first full-scale show in two years.