"Challenger" is JO1's fourth Japanese single, showcasing their continued growth in the dance-pop genre.
- The single was released on April 28, 2021, by LAPONE ENTERTAINMENT.
- "Challenger" features the A-side track of the same name and the B-side "Dreamer."
- The single topped the Oricon Weekly Singles Chart upon release.
JO1 is a Japanese group formed through the survival show Produce 101 Japan. They are known for their synchronized dance-pop performances.
Tracklist
