The duo Trouble Maker was spotted filming for their 1st comeback stage on MBC Music "Show Champion" that will be aired today.

Trouble Maker, who released their 2nd album with their song "Now" on October 28 and has been dominating music charts, has been filming since early morning.

One representative stated, "They've been filming since around 7 in the morning. They've been practicing for the best performance they could make. Their outfits were sexy to fit their concept as always. HyunA upgraded in her sexiness in a garter belt outfit."

Phto Credit: Trouble Maker