People became curious after watching KBS 2TV's 'Music Bank' on November 29 as to why the singers appeared to be lip-syncing on the program.

One music show rep told Newsen, "We could not have live performances due to the strike.  Nevertheless, a portion of the groups pushed ahead with live singing; still, I have been told that the majority had no choice but to lip-sync due to the aftermath of the strike."

SEE ALSO: Lee Juk wins #1 + Performances from Nov. 29th 'Music Bank'!

This was not the first time that 'Music Bank' had to forego live performances due to a strike.  Fans and audience members may have been disappointed, but the singers undoubtedly did their best anyway so check out their performances here!