HyunA and Hyunseung still manage to look sexy wearing casual clothes in the studio for their "Now" dance practice video.

Trouble Maker, the hit sub-unit duo made of 4Minute's HyunA and BEAST member Hyunseung are without a doubt the hottest thing in K-Pop right now.

They are currently experiencing tremendous success with their latest single "Now" for its catchy tune and 19+ music video.

The pair have been killing it on various music programs with live performances of the latest tune and as of today have released a dance practice video.

Uploaded to their agency Cube Entertainment's official YouTube channel on November 18, the choreography practice video shows off all the hard work Trouble Maker have put into their comeback.

Even though they are wearing comfortable causal clothes, the ultra-sexy dance moves heat things up in the CUBE Studio.

And judging by the looks on everyone's faces, it seems that preparing the "Now" dance routine seems like it was a lot of fun! At the end of the video, the other dancers celebrate a job well done by throwing various articles of clothing and shoes at HyunA and Hyunseung with laughter and applause.

Check out the entertaining practice video below!