'Angel Fingers' by Wizzard. Roy Wood is one of my favourite rockers. The singer of Renaissance, Annie Haslam (in the post above) was Roy's girlfriend, and the song 'Northern Lights' was about him.
Santana 'Oye Como Va', whatever that means. I love Carlos Santana's loud and clear guitar lines over the Latin rhythms.
The Foundations, in the clip above, and Santana were the original mixed race pop groups; black and white musicians played together and no-one made a fuss.