BTS‘s RM posted a picture on Twitter today, teasing their upcoming comeback.

He stands in one of the new HYBE practice rooms, a hands-free headset hanging from his neck, possibly implying a rigorous choreography. Letting fans know the group is hard at work in preparations for the comeback, he captioned the photo, “cooking..” 

bts rm

He has returned yet again to blonde hair! If BTS are planning on wearing yellow for “Butter,” as many fans suspect, RM’s hair will surely be well-coordinated with his outfit.

rm blonde

Check out RM’s post below: