O'Shea is an Australian country music duo composed of Mark and Jay. The duo commenced in 2007 and after relocating to Nashville in 2007, the duo has seen success as artists and songwriters, with nine #1 singles on the Australian country charts, as well as finishing fifth in the Country Music Television 2009 series Can You Duet. The duo have released four studio albums, all of which have peaked inside the ARIA top 50.

Can You Duet is an American reality-competition show on CMT. The show was produced by FremantleMedia, the same company that produces American Idol.