What Up, Dog? is a 1988 album by Was (Not Was). It became the US group's breakthrough album worldwide and was ranked #99 on Rolling Stone magazine's list of the 100 Best Albums of the 1980s. Success of What Up, Dog? was propelled by the group's two biggest hits: "Walk the Dinosaur" and "Spy in the House of Love" and four other singles. The former was promoted by a popular music video in which the band performed while a group of girls in campy cave girl costumes danced.