LG Electronics revealed on June 1st that they chose�KARA to be the Japanese CF models for their upcoming cellphone brand , LG 'Optimus Bright'. A representative revealed, "To celebrate the launch of our new 'Optimus Bright' smartphone in mid-June, we have decided to partner with popular girl group KARA because of their youthful and lovely image which complements our product." KARA will also be releasing a new Japanese single titled 'Go Go Summer Bright' on June 29th, which will be used for the CM and be promoted at the same time. The LG 'Optimus Bright' is the Japanese variant of the 'Optimus Black', but with some slight modifications. The CM and print advertisements will be launched starting June 17th. Source + Image: Newsen via Nate