The Walker Brothers

The Walker Brothers were an American pop group of the 1960s and 1970s, comprising Scott Engel (eventually known professionally as Scott Walker), John Walker (born John Maus, but using the name Walker since his teens), and Gary Leeds (eventually known as Gary Walker). After moving to Britain in 1965, they had a number of top ten albums and singles there, including the No. 1 chart hits "Make It Easy on Yourself" and "The Sun Ain't Gonna Shine (Anymore)," both of which also made the US top 20.

source: Wikipedia