"Stacy's Mom" is a pop rock song by the American rock band Fountains of Wayne. It was on their third studio album, "Welcome Interstate Managers". "Stacy's Mom" was released on the radio on May 20, 2003. The song was released as the main single from "Welcome Interstate Managers" on September 29, 2003. The album was released through S-Curve Records and Virgin Records. "Stacy's Mom" was written by bassist Adam Schlesinger and vocalist Chris Collingwood. Both of them created the song alongside Mike Denneen. The song was inspired by Schlesinger's friend when he was young who had a crush on his grandmother.