Some guy was escorted from the KENNY CHESNEY - TIM MCGRAW Brothers of the Sun concert Saturday in Nashville . . . because he looked just like Kenny. Nathan Blankenship was on the main floor near the stage when he was asked to leave because people in the crowd were totally fooled. They were asking for autographs and photos . . . and it was causing a commotion. Here's what Blankenship told Nashville's WKRN-TV. He said, quote, "Here or there somebody asked to take a picture to make their friends or family think they were with Kenny or whatever, that's fine. I don't mind. "I can't help with the way I look. Is it because I wear the hat? I see a million of these hats here. I've worn baseball caps before and people still want to have pictures made but it's never caused a problem." Okay, I'm calling B.S. on this clown. He CAN help the way he looks because he's going out of his way to dress and look just like Kenny. He wears the same cowboy hat, the same sleeveless T-shirt . . . he's even shaved the sides of his head bald . . . and he's all muscled-up and tan.