Little Big Town - Pain Killer (2014)

Little Big Town is an American country music vocal group. Founded in 1998, the group has comprised the same four members since its inception: Karen Fairchild, Kimberly Schlapman, Jimi Westbrook, and Phillip Sweet. The quartet's musical style relies heavily on four-part vocal harmonies, with all four members alternating as lead singers, a formula similar to The Mamas and the Papas andPeter, Paul and Mary.^[1] Westbrook and Sweet also play rhythm guitar.

Keith Urban - Defying Gravity 2009

Keith Urban (Wikipedia): Keith Lionel Urban (born 26 October 1967) is a New Zealand-born Australian, country music singer, songwriter and guitarist whose commercial success has been mainly in the United States and Australia. Urban was born in New Zealand and began his career in Australia at an early age. In 1991, he released a self-titled debut album, and charted four singles in Australia before moving to the United States in 1992. Eventually, Urban found work as a session guitarist before starting a band known as The Ranch, which recorded one studio album on Capitol Records and charted two singles on the Billboard country charts.