Formed through the reality competition show Produce 101 Japan, JO1 debuted in 2020 with the single Protostar and the Japan Hot 100 number-one song "Infinity".

In 2021, JO1 extended their streak with three number-one singles—Challenger, Stranger, and Wandering.

The latter earned the group's first double platinum certification from the Recording Industry Association of Japan (RIAJ) for shipments of over half a million units.

JO1's number-one album streak continued in 2023 with Equinox, which was preceded by the singles Midnight Sun and Tropical Night.

In 2024, JO1 released singles Hitchhiker and Where Do We Go; the first marks the group's first triple platinum certification.