Group 4minute's member HyunA released the making film of her new song "Because I'm The Best."

On Tuesday, HyunA released the music video making film of her mini 4th album A+'s new song "Because I'm The Best" through her official Naver Starcast channel.

The making film captures the hard work HyunA and other staffs put into the music video for two straight days.

There was also a shocking story behind the opening scene of a dancer who appears in a mask and a collar. "I wanted to do this so badly so I made it for this music video. If you look closely, there's a unicorn logo. They said they have to make a minimum of 100 orders of it so I just ordered a 100. So now I have 80 left over. What do I do?," said HyunA.

BTOB's member Jung Ilhoon who featured in the song also appeared as HyunA's partner.