Gerry Humpries fronting up the "Loved Ones" was argueably the "blackest" white singer around in 1965. I think the overdose of piss, drugs and wimmen got to him and shortened his career. There is a vid of his alleged last performance on You Tube. I did not post it because I prefer to remember them in their hey days.
Here is "The Loved Ones" with a song that made tem very popular. Unfortuantely no vid available except for a lot later performances.
Other well received numbers were "Sad Dark Eyes" and "Magic Box" which was the title of one of their albums.