Keith Relf
William Keith Relf ( 22 March 194312 May 1976 ) was an English musician , best known as the lead vocalist and harmonica player for the Yardbirds . 
<triplet> Keith Relf <subj> 22 March 1943 <obj> date of birth <subj> 12 May 1976 <obj> date of death <triplet> the Yardbirds <subj> Keith Relf <obj> has part