Frog Song (かえるのうた, Kaeru no uta) originally released as Paid Companionship Story: Girls Who Want to Do It (援助交際物語　したがるオンナたち, Enjo-kōsai monogatari: shitagaru onna-tachi) is a 2005 Japanese Pink film directed by Shinji Imaoka. It was chosen as Best Film of the year at the Pink Grand Prix ceremony. According to author Jasper Sharp, the title, "Frog Song" is a pun referring both to a full-sized frog costume found outside a train station and worn by one of the characters, and to the Japanese verb kaeru "to go home". The translation of the title of the film could thus also be "Going Home Song".