The Walker Brothers

The Walker Brothers were an American 1960s and 1970s pop group, comprising Scott Engel, John Maus, and Gary Leeds. They had a number of top ten albums and singles in the mid-1960s, including number 1 chart hits "Make It Easy on Yourself" and "The Sun Ain't Gonna Shine (Anymore)".

Formed in 1964, the three unrelated musicians adopted the 'Walker Brothers' name as a show business touch - "simply because we liked it". They provided a unique counterpoint to the British Invasion in that they were a group from the United States that only achieved success in the United Kingdom and Germany, while the popularity of bands such as The Beatles spread to the US.

From Wikipedia