The Wonder Girls' member�Yeeun recently underwent a radical hair transformation that's got fans all over the world buzzing about the idols' new blonde locks. With a simple greeting of, "hello everyone ;)" as the caption, Yeeun posted the above photo on Twitter less than an hour ago, generating immediate reactions from Wonderfuls, who are generally shocked by the sudden transformation. "You look so pretty with that, I like it," one user expressed, while another said, "You look so much younger with this blonde hair!" As 2PM's�Nichkhun can be spotted in the back, the photo is speculated to have been taken at rehearsal or practice in Korea. Considering the fact that the Girls will be involved with their Hong Kong concert on December 19th and participating in the�JYP Nation "Team Play" Concert on Christmas Eve (December 24) then following up with other promotions throughout Asia for a while, this makeover was probably out of amusement rather than for a new concept. As they have plans to release a single or their debut English album in America in early 2011, a JYP representative earlier stated that the Girls will be too busy in America to have activities in Korea just yet. But back to Yeeun's new blondeness - give us your opinion on her new hair in the comments section below! Source: Twitter