"Don't Let Me Be Misunderstood" by Nina Simone. Nina's live performance and others from 1965 & 1968 available on "Jazz Icons" DVD: http://amzn.to/1izKR4X
Recording session: Live in London, 1968. Recorded for England's Granada TV, perhaps in June 1968 (and broadcast on September 14). The special is titled Sound of Soul and is divided into two halves. During the second half, Simone changed into an African robe and headdress.
Nina Simone: piano, vocal
Sam Waymon: organ, vocal, percussion
Henry Young: guitar
Gene Taylor: bass
Buck Clarke: drums