Group INFINITE shared a stronger and more masculine on-stage image.

On August 1, INFINITE performed their comeback song, "BACK" on KBS "Music Bank."

On this day, INFINITE wore a black matching outfit and sang to their emotion and beat song with a perfect choreography.

"BACK" is a dance song with an orchestral and pop genre.

The song starts with a 1:20 ballad then quickly switches to a fast beat dance song.