Pepper Keibu (ペッパー警部; Inspector Pepper) was released by Morning Musume as a single on September 24, 2008 under the Zetima label to promote their upcoming ninth album, COVER YOU, a tribute to producer Aku Yuu. The Single V DVD of the single was released on October 22, 2008. "Pepper Keibu" was originally released by 70's pop group Pink Lady and written by Aku Yuu, who also wrote the B-side of this single, "Romance".