K-pop sensation Oh My Girl is back with their 10th EP, "Dreamy Resonance," featuring the fresh track "Classified" that showcases a departure from their energetic summer hits. Yooah shared that the song offers a dreamy and lyrical experience, aiming to provide comfort and support to those in need. The group deliberately chose to present this type of music for their 10th anniversary, catering to the deep affection their fans have for their dreamy and lyrical compositions. Seunghee expressed her hope that fans will appreciate the beautiful piano sound in the song. Mimi, one of the members, contributed to the rapping part of the title track, drawing inspiration from cherished memories and aiming to convey a message of solidarity and support to those facing difficulties. The album also includes three duet songs and showcases the group's close bond formed over the past decade. Hyojung highlighted how their musical capabilities have grown over the years, allowing them to express music in a more personal and diverse way. As they celebrate their 10th anniversary, the group aims to engage closely with fans through various online and offline activities.