The song is noted for its dreamy qualities brought on by the soft guitars, smooth rhythm, and Jagger’s lilting refrain of “doo-doo-doo”. Veteran Stones collaborator Nicky Hopkins performs the track’s running piano.[1] The Stones hired jazz saxophonist Sonny Rollins to perform the solo on this song, as well as two other songs on the album. On his contribution to the track, Jagger said in 1985:
“I had a lot of trepidation about working with Sonny Rollins. This guy’s a giant of the saxophone. Charlie said, ‘He’s never going to want to play on a Rolling Stones record!’ I said, ‘Yes he is going to want to.’ And he did and he was wonderful. I said, ‘Would you like me to stay out there in the studio?’ He said, ‘Yeah, you tell me where you want me to play and DANCE the part out.’ So I did that. And that’s very important: communication in hand, dance, whatever. You don’t have to do a whole ballet, but sometimes that movement of the shoulder tells the guy to kick in on the beat.”[2]