Fifty Fifty has taken on the role of singing the drama OST. On the 26th, CJ ENM announced, "Fifty Fifty will sing the theme song of tvN's Monday-Tuesday drama 'Spring Fever.' The song 'Still In Time' will be released on the 26th."

'Still In Time' is a medium-tempo acoustic love song. The song combines guitar melodies and warm string sounds to convey a feeling that seeps in like sunlight. It delicately captures the heart of Lee Joo-bin (Yoon Bom) gradually being drawn in by Ahn Bo-hyun's (Seon Jae-gyu) straightforwardness in the drama. The warm lyrics suited for lovers stand out.

The drama 'Spring Fever' is a romance drama that tells the story of a voluntary outsider and a man with a burning heart in a chilly school setting. This drama portrays a unique kind of excitement.

'Still In Time' was produced by composer Park Woo-sang, who worked on Hwasa's 'Good Goodbye.' Fifty Fifty's charming vocal tone enhanced the song's completeness.

The drama 'Spring Fever' airs every Monday and Tuesday at 8:50 PM.