Top stars Jeon Ji-hyun and Lee Hyo-lee recently faced off in a heated "Battle of the Butts." The struggle took its cue from the recent "Best Body" fad making waves among Korean Internet users.

Jeon Ji-hyun (right) and Lee Hyo-lee

In the first round of this "Clash of the Keisters," Jeon finished on top after a closely-fought battle, or so says a survey conducted by casual clothes brand EXR, MyClub, and Good Diet that asked participants, "Which entertainer has the sexiest rear-end?" Lasting 10 days, the survey netted 29,467 responses, and with 41 percent "back"ing Jeon Ji-hyun, she ascends the "Best Bum" throne, beating out Lee Hyo-lee, who was able to garner only 30 percent support.

Meanwhile, it was a brutal struggle in the men's section, too, with two of the country's most popular entertainers -- Kwon Sang-woo and Rain -- facing off in "rump rumble" of their own. Kwon barely managed to beat out Rain with a grand vote total of 11,020 (37 percent) to 9,488.

The head of a well-known plastic surgery clinic in Seoul's Apgujeong-dong put it this way: "Jeon Ji-hyun's and Kwon Sang-woo's buttocks, from a medical perspective, are quite unusual, statistically speaking." This would seem to lead credibility to the questionnaire's results.

(Jeong Hyeon-seok, hschung@sportschosun.com )