"Osaki ni Shitsurei" (お先に失礼) is the 5th single by the Japanese idol girl group Onyanko Club.
The single, although not being released with, was used as the main theme for Onyanko the Movie: Close Call!
[ja], starring Onyanko Club.
This song marked the first time that Yukiko Iwai became one of the lead vocalists.
[1][2] This would also be the second instance of Kazuko Utsumi singing a B side, as she did with Omoide Bijin on the single Otto CHIKAN!