Right after wrapping up their Sense/Only One promotions, UNB announced that they will be going straight into preparations for a new album. And they didn’t mess around with that announcement, as the newly debut group has officially dropped their second mini-album, which shares the same title as their title track, Black Heart. This comeback also features 4 special guests: Jungha (BEATWIN), Hangyul (IM), Jueun (DIA) and Anne (SIS).

From my understanding, none of the special guests participated in the recording of the song. Black Heart is a great dance song that is fast beoming another highly addictive song. I really liked the showtune-like piano introduction at the start of the song, which built up the suspense for what was to come. The song then progresses into a synth based dance track, which somehow felt unexpecting at first. There is this energy buildup within the verses, which allows the entrance into the chorus sound so much good. On top of that, I thought the chorus was really well done, especially with how all the members singing together. It gives the song a punch in its melody and makes it memorable. I really liked the post-chorus instrumental break as well. To keep the song from becoming repetitive, the song returns to that showtune piano introduction during the bridge, which also works wells within the song. The only thing I think the song is missing is a rap sequence, which could have added some interesting textures to the song. But othet r than that, it was a really good song.

Out of the 4 guests, the music video only features the male guest (that is, Jungha and Hangyul). To why it is only them, I am not too sure. But I have to admit, they fitted in pretty well. It did cause some friction within the screentime department, however, which is quite sad to hear. All the members (and the male guests) had good chemistry with the camera, which makes this video even better. I really liked the edgy vibe that was coming from their outfits. I thought the dance-off concept was rather interesting and well executed.

All 4 special guests feature in the performances. And I think it help boosts the number of people of stage, which contributes to the livelihood of the performance. I really liked the start of the performance, when some of the members are doing acrobatic-like jumps. The performance also features awesome footwork, seen most prominently during the post-chorus instrumental break. Also, the ending looked quite good.

Song – 9/10
Music Video – 9/10
Performance – 9/10
Overall Rating – 9/10