"Whiskey in the Jar" is a cover of a traditional 17th-century Irish folk ballad. Metallica was directly inspired by the classic version of Thin Lizzy (1973) and recorded for the album Garage Inc. (1998), which is 100% made of covers.The track became one of the band's biggest hits in the 90s, #1 in several European countries and won the Grammy for Best Hard Rock Performance in 2000.