Phones are not for flying. Bring Me the Horizon frontman Oli Sykes suffered a mild concussion when a fan launched their phone at him while he was on stage during a concert. Sykes was struck when he and the band, known for their high-energy performances, were mid-performance of their song “Happy Song” in front of 22,000 at the Enterprise Center in St Louis, Mo. on Monday night. Bring Me the Horizon frontman Oli Sykes suffered a concussion after a fan threw their phone at him on stage in St Louis, Mo. Oli Sykes / Instagram “Who the f— just threw a phone at my f—in’ head? You f—in’ tosser,” Sykes shouted to the audience while crouched at the front of the stage picking up the phone, in a moment caught on a fan video . Despite the injury, Sykes finished the show, though the band cut “YOUtopia” from the set and he did not enter the crowd during “Drown” as he usually does. “Alright everyone – just wanted to let you know I’m all good.” Sykes wrote in an Instagram Story after the incident.…