< The boys of CNBLUE have been endorsing mobile phone manufacturer Sony Ericsson for quite some time now. Back in June, front man Jung Yonghwa released a CF for the Xperia X10 phone. Now, a smaller version of the phone, the Xperia 10 Mini has been released and all of the CNBLUE members participated in this new CF. The CF shows the various colors of CNBLUE with black showing them as heavy metal rockers, green depicting them as country singers, and pink showing them as a girly cute group. Pretty smart concept and hilarious CF, check it out below. Tip: Anna + mina Photo: Newsen