The ladies of rookie girl band�Bebop�are making their official debut with their comical MV for "I'm the Best" (Korean title: 'I'm the Main').

Bebop consists of 3 members,�A-Yeon,�Juwoo, and�Ji In. Ji In may be a familiar face to many as she is actually a former member of�Girl's Day. She'll be re-debuting as part of this girl group with the song "I'm the Best".

The MV teaser portrays the 3 members enjoying what seems to be a refined dessert party, but each seems to hint that she considers herself to be the 'main' or the 'best' member. This ends up in a blown out girl fight with the members getting slapped as well as battling it out in a ring and a pillow fight to round it out.

So check out the song above and the other tracks off their mini album through the playlist below as Bebop sets out to make a name for themselves!