Blunt's his artist name. He as born a James Hillier Blount, and he's a former officer in the British Army, more precisely the Life Guards regiment, one of two regiments that make up the Household Cavalry.
Chicago with 25 or 6 to 4.
This band from, you guess it, Chicago, first saw the light in 1967 and still continues. It still counts four original members (Parazaider, Loughnane, Lamm and Pankow).