MAMAMOO's Hwa Sa will be joining HyunA for her comeback stage on 'M! Countdown' this week!

SEE ALSO: HyunA sets off to see her lover in the music video teaser for "Q&A" from her upcoming EP 'Attitude'

BTOB's Ilhoon will be performing with HyunA for her title track "Because I'm the Best", which he features in, while Hwa Sa will be joining her for "Ice Ice". The MAMAMOO maknae is set to bring out her rap for the song.

You can check out both performances on allkpop's recap of 'M! Countdown' tomorrow!