'Mm-hmm' is a song that features a strong groove-based drum line, with a retro synth sound from the 90s added to give it a trendy yet retro charm. In particular, the kitschy whistle line that appears in the hook is impressive, and leaves a strong impression on the listener along with the addictive melody. The overall atmosphere of the song maintains an energetic yet sensual style, further highlighting the individuality and challenging message of the male idol group.

The melody expresses the answer "Mm-hmm" that contains the meaning of positivity, and the lyrics contain a story about continuing to work hard with confidence on one's own path. It is a song that responds to a question that is asked with a worried smile with a confident answer.

It is a difficult song with fast raps that are close to tongue twists and splendid vocal ad-libs, but the 3Way Project members did a great job of expressing the song 120%.

'Mm-hmm' Music Video

Meanwhile, 3WAY are fully promoting the new song on weekly music shows and more.