Lady Antebellum fans were treated to a surprise concert last night in Los Angeles. The superstar trio were out celebrating the 100th birthday of OREO cookies. They played at The Grove last night in L.A., and sang happy birthday to the giant OREO mascot. An OREO flash mob also took place during the concert.
OREO will be holding birthday parties in other cities in the coming weeks. Keep a look out – you never know who might show up!