Men at Work are an Australian rock band formed in Melbourne in 1978 and best known for breakthrough hits such as "Down Under", "Who Can It Be Now?", "Be Good Johnny", "Overkill", and "It's a Mistake". Its founding member and frontman is Colin Hay, who performs on lead vocals and guitar. After playing as an acoustic duo with Ron Strykert during 1978–1979, Hay formed the group with Strykert playing bass guitar and Jerry Speiser on drums. They were soon joined by Greg Ham on flute, saxophone and keyboards, and John Rees on bass guitar, with Strykert switching back to lead guitar. The group was managed by Russell Depeller, a friend of Hay, whom he met at La Trobe University. This line-up achieved national and international success during the early to mid-1980s.

"Down Under" is a song recorded by Australian rock band Men at Work. It was originally released in 1980 as the B-side to their first local single, "Keypunch Operator", released before the band signed with Columbia Records. Both early songs were written by the group's co-founders, Colin Hay and Ron Strykert. The early version of "Down Under" has a slightly different tempo and arrangement from the later Columbia release. The best-known version was then released on Columbia in 1981 as the second single from Men at Work's debut album Business as Usual (1981).