"(She's So) Selfish" is a hit song written by Doug Fieger and Berton Averre that was first released by the Knack on their #1 debut album Get the Knack in 1979. It also appeared on a number of live and compilation albums. It was intended for release as a single, but was prevented by its "scatological" lyrics. It was inspired by the same woman who inspired the band's #1 single "My Sharona." It was praised by critics for its hooks and style, but criticized for its nastiness and sexism.