Recently, Adam Bevell, who lost his sight more than two decades ago, attended his 20th U2 concert in Nashville. Throughout the show, he held up a sign that read “Blind Guitar Player: Bring Me Up!” And eventually Bono took him up on the offer by inviting him on stage to strum along to “All I Want is You” and then letting him leave with a parting gift — Bono’s green guitar. Caution: possible instance of profanity by someone in the crowd.