The first full trailer for the upcoming Elton John biopicRocketmanis here, and the clip will have you convinced that lead actor Taron Egerton reallyisthe Rocket Man himself. The two-and-a-half-minute preview traces how the musician born Reginald Dwight came to assume his stage moniker and flashy costumes while also hinting at the dark side of Sir Elton's stardom. Egerton also proves he's got the chops to sing just like Elton as he belts out his classic hit "Tiny Dancer." Meanwhile, John himself tweeted out the trailer on Thursday, along with the movie's tagline: "The only way to tell his story is to live his fantasy." Rocketmanis in theaters on May 31