<P> 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 '' 's . Stones - recording veteran Nicky Hopkins performs the track 's running piano . The Stones hired jazz saxophonist Sonny Rollins to perform the solo on this song , as well as two others on the album . On his addition to the track , Jagger said in 1985 : </P>
<P> 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 '' 's . Stones - recording veteran Nicky Hopkins performs the track 's running piano . The Stones hired jazz saxophonist Sonny Rollins to perform the solo on this song , as well as two others on the album . On his addition to the track , Jagger said in 1985 : </P>
who plays sax on waiting for a friend
who plays sax on waiting for a friend
Sonny Rollins
Sonny Rollins