During a recent recording of MBC TV "Enjoy Today", it was reported that guest star f(x)'s Luna caused the filming to come to a halt after she burst into tears in front of the judging panel. The show was recording a special episode called '3rd Music Project - Enjoy Rock,'�where the cast were to battle it out against each other by performing a new song by singers Kim Jong Seo and Yoon Do Hyun.�The judging panel consisted of some of the greatest Korean artists, Yoon Hyun Sang, In Sooni, and the nation's rock music representatives Kim Jong Seo and Yoon Do Hyun. The first stage of the audition saw performances by new guest stars Luna, racing model Goo Ji Sung and actress Hong Soo Hyun, making the audition set even more intense with the fierce competition. However, after Luna's performance, the judge panel pierced Luna with a harsh comment, "You lack a sense of understanding of music." As a result, Luna bursted into tears and caused the recording to come to a pause. The full episode will air this coming February 6th at 5:20 PM KST. Source: TV Report via Nate