Stargazer (stylized as "STARGAZER") is the second single of Japanese boy group JO1. Consisting of a total of six songs, the maxi-single was released by Lapone Entertainment into three different physical editions and one digital edition on August 26, 2020, with "Oh-Eh-Oh" serves as the lead song. The single features participation by members Sho Yonashiro and Ren Kawashiri in writing lyrics and choreography respectively for the first time, as well as production by Hui from Pentagon.
The first edition is a CD and DVD bundle limited edition that includes a making video of "Oh-Eh-Oh", a variety segment with members titled JO1 School, and the group's version of the song "Kungchikita" performed during the concept battle evaluations in Produce 101 Japan. This version comes with a photocard exclusive for the Limited Edition version A (1 random out of 11).