Girl group HIKEY heightened anticipation for their comeback by revealing the second concept for their new digital single 'Unbelievable.'

From the 5th to the 10th, HIKEY released the second concept film and photos for 'Unbelievable' through their official social media and YouTube channel.

In the released content, members Seoi, Riina, Hwiseo, and Yel captivated viewers with sensual gestures and a fearless attitude under red lighting. Blue-toned leather styling and dynamic performance completed the intense atmosphere.

In particular, 'Unbelievable' is a track with a different character from their existing hit songs, and it is expected to showcase a new musical transformation and expansion of their range, based on the group's signature healthy beauty.

Meanwhile, HIKEY's new digital single 'Unbelievable' will be released at 6 p.m. on the 13th through various online music streaming sites.

Photo = Choi Creative Lab