One Step! / Tomorrow Never Knows
- ONE STEP! feat. mini / Tomorrow never knows
- Catalog Number
"ONE STEP! feat. mini / Tomorrow never knows" is the seventh single released by BACK-ON. "Tomorrow never knows" was used as DyDo's "Blend" and "Demitasse" commercials song. The single reached #91 on the Oricon weekly charts, and charted for 2 weeks.