4minute Hyun-a, BEAST Jang Hyun-seung form duo unit

Main photograph to jacket of Jang Hyun-seung and Hyun-a's duo unit album "Trouble Maker" [Cube Entertainment]

BEAST member Jang Hyun-seung and 4minute member Hyun-a have come together to form a duo unit named "Trouble Maker."

The two's agency Cube Entertainment announced the collaboration on their official website on Thursday while also stating that the duo will release a mini-album named "Trouble Maker" on December 1.

The album will contain both dance and ballad numbers that display Jang's vocals and Hyun-a's rapping skills, the announcement explained.

Hyun-a, the lead rapper and vocalist of her female quintet which debuted in 2009, has released solo albums as well.

Jang is the lead vocalist of his popular six-member boy band which debuted in 2009.

A teaser photo for "Trouble Maker" will be revealed through a teaser website tomorrow afternoon, added the website.

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