What makes Deepened by BB Girls notable?

'Deepened' helped BB Girls gain initial traction in the K-pop landscape, leading to performances on major music shows. Its title track '변했어' showcased their potential, contributing to a growing fanbase and solidifying their presence within the genre. Released on February 16, 2016, 'Deepened' was BB Girls' debut mini-album, marking their introduction to the K-pop scene. At this point, the group aimed to establish their identity in a competitive industry, following their formation in 2015.