For King & Country, stylised as for KING & COUNTRY and formerly known as Joel & Luke as well as Austoville, is a Christian pop duo composed of Australian brothers Joel (born 5 June 1984) and Luke Smallbone (born 22 October 1986). The brothers were born in Australia and emigrated to the United States as children, settling in the Nashville area.

After releasing a short EP as Joel and Luke, in 2012 they released their debut record Crave. The band was declared by Billboard as one of the "New Artists to Watch" for 2012. American Songwriter described them as "Australia's answer to Coldplay". In 2014, they released their second studio album, Run Wild. Live Free. Love Strong., which won a Grammy award.

In 2018, they released Burn the Ships, which achieved gold status. The album featured three singles, including "God Only Knows", which achieved platinum status, and "Joy" and "Burn the Ships", which reached gold status. In 2020, they released a full-length Christmas album, A Drummer Boy Christmas. In 2022, they released their fifth studio album, What Are We Waiting For?

The band has collaborated with many artists on their work, including Dolly Parton, Timbaland, Tori Kelly, Lecrae, CeCe Winans, Needtobreathe, and others.