Colin Hay

From Discogs:

Colin Hay (born Colin James Hay, 29 June 1953, Saltcoats, North Ayrshire, Scotland) is a Scottish-Australian musician, who made his mark during the 1980s as lead vocalist of the Australian band Men at Work, and later as a solo artist.

From Lastfm:

Singer/Songwriter Colin Hay is the former front-man of the classic Australian band Men at Work. Since the group disbanded he has released several solo albums, including Man at Work, which featured re-recordings of classic Men at Work songs in an acoustic environment.

More recently Hay has been involved with the NBC TV series Scrubs, lending several songs to the sitcom, including "Waiting for My Real Life to Begin," "My Brilliant Feat" and "Beautiful World." He also starred as a troubadour in the first episode of season two, "My Overkill," performing his song "Overkill," which was also the basis for the episode's title.

From Wikipedia:

Colin James Hay (born 29 June 1953) is a Scottish-Australian musician, who made his mark during the 1980s as lead vocalist of the Australian band Men at Work, and later as a solo artist.

Hay is married to singer Cecilia Noël, who often provides backup vocals at Hay's shows.