BTO! B-BLUE, which consists of the vocalists of BTOB Seo Eun Kwang, Lee Chang Sub, Lim Hyun Sik and Yook Sung Jae, will release their first digital single Stand By My Side on September 19. BTO! B-BLUE′s first digital single Stand By My Side was produced by Korea′s top producing team Black Eyed Pilseung, who have also produced tracks for Sistar, Twice and more.
Additionally, fans are especially excited as BTOB member Peniel will be featured in the music video for the digital single.
The release of BTOB′s first unit BTO! B-BLUE is especially gaining attention as the group had previously proven their skills by winning KBS′ Immortal Song in August. Additionally, the main vocalist Seo Eun Kwang also appeared on MBC′s King of Mask Singer and showed his abilities as a vocalist.
The group′s agency Cube Entertainment stated, "Through ′Stand By My Side,′ BTOB′s vocalists will show their true abilities. As it is a ballad track that matches well with fall, we expect that not only fans, but many people will also love the track. Please cheer for BTO! B-BLUE."