Auburn resident Kim Ohman was treated to the performance of her life yesterday by lead singer Johnny Rzeznik and his Goo Goo Dolls at the Mix 104.1 Beach House on Cape Cod.She won the private concert through the radio station’s contest and was 
allowed to invite a handful of family and friends. “It’s like a dream. It’s beyond a dream. This is more than we could ask for,” she said.Previous winners have enjoyed private concerts by Ed Sheeran and Train. On-air talent Fast Freddy and Gregg Daniels were on hand throughout the afternoon, broadcasting portions live.“It’s a fun experience, I wis