Clayton-Thomas is best known for late 1960s hits like “Spinning Wheel,” “And When I Die” and "You Made Me So Very Happy." NEW YORK (AP) — David Clayton-Thomas, the lead singer of Blood, Sweat & Tears whose husky, high-strung tenor on “Spinning Wheel,” “And When I Die” and other hits helped make the so-called “brass rock” band among the most popular acts of the late 1960s, has died at age 84. Spokesperson Eric Alper said that Clayton-Thomas died “peacefully” Wednesday at St. Michael’s Hospital