"Mack the Knife" or "The Ballad of Mack the Knife" (German: "Die Moritat von Mackie Messer") is a song composed by Kurt Weill with lyrics by Bertolt Brecht for their 1928 music drama The Threepenny Opera (German: Die Dreigroschenoper). The song has become a popular standard recorded by many artists, including a US and UK number one hit for Bobby Darin in 1959.