Another lost classic that you don’t hear on the radio much anymore: Cream’s I Feel Free from 1966. According to WikiPedia:

The song’s lyrics were written by Pete Brown, its music by Jack Bruce. It was the first track on the US issue of their debut album, Fresh Cream (1966), and the band’s second hit single (the first being “Wrapping Paper”). As with all tracks on Cream’s US debut, producer’s credit went to Robert Stigwood.  “I Feel Free” showcases the band’s musical diversity, effectively combining blues rock with psychedelic pop.