“Splish Splash” (1958) was co-written by Bobby Darin and DJ Murray “Murray the K” Kaufman. According to legend, Kaufman’s mother called with the idea lyric “Splish, splash, take a bath,” which Darin turned into this novelty rock tune. The song includes sound effects of water and a bathtub, and its playful style launched Darin’s career (it was his first million-seller).