Luke Bryan took a brutal fall as he performed onstage at the Coast City Country festival in Vancouver, Canada, on Saturday — all because of a fan’s cellphone.He then asked a crowd member to show him footage. “You’re Snapchatting. You can’t Snapchat this s – – t,” he said.Despite the 47-year-old country singer falling on his back, he laughed about the incident and asked the audience if anyone caught the moment on camera.“Hold on.