K-pop project boy group UNB returned with a new mini album only about two months after the release of 'BOYHOOD' in April.

On July 3 episode of SBS MTV 'The Show', UNB unveiled 'BLACK HEART' and impressed everyone with its powerful performance.'BLACK HEART' is the title track of UNB's second mini album released on 28 June.

This unique-sounding dance track combines '20s jazz sounds with modern EDM sounds.

The song will certainly get your body moving when you listen to it.On this day, UNB members demonstrated some incredible acrobatic martial arts movements alongside powerful dance moves.

After the performance, a lot of fans have been commenting on the song's impressive choreography.

Watch UNB's amazing comeback performance below!
 
(Lee Narin, Credit= SBS MTV The Show)

(SBS Star)