Al Kooper is an American musician, songwriter, and record producer who has been active in the music industry since the 1960s. He is best known for his work as a session musician, playing keyboards on Bob Dylan's "Like a Rolling Stone" and the Rolling Stones' "You Can't Always Get What You Want". He has also released several solo albums, including his debut album, I Stand Alone, which featured the hit single "This Diamond Ring". Kooper has also produced albums for artists such as Lynyrd Skynyrd, the Blues Project, and Blood, Sweat & Tears. He has also collaborated with artists such as Stephen Stills, Eric Clapton, and Jimi Hendrix. Kooper's music is a blend of blues, rock, jazz, and folk, and his work has been praised for its innovative approach to songwriting and production.