Pop group KARA have just revealed their commercial for LG - NTT Docomo's Optimus Bright phone! The 15-second commercial features KARA playing around on the beach and taking pictures with the Optimus Bright, as their new Japanese single, "Go Go Summer!", plays in the background. Also recently revealed is a sneak peek of the filming of the commercial, where you can get a behind-the-scenes look at the girls enjoying themselves on the set. Check out the commercial and behind-the-scenes footage below! ===