The dancers, who all appeared to be topless and wore skimpy bikini-style bottoms and feathered head-dresses, covered the stage during a performance by singer DJ OZMA, prompting about 250 viewers to phone in and complain.
"The dancers were wearing body suits, but we apologize for any misunderstanding," a presenter announced toward the end of the 57th annual "Red and White Song Contest."
"I guess it looked a bit too real," local media quoted the singer as telling reporters after the show, which regularly tops viewer ratings on New Year's Eve in Japan.