One of his first songs, "The Dance of Love", was recorded by The Bell Sisters in 1953, arranged by Nelson Riddle for RCA Victor, but it was not released at the time.
Other singers who recorded Hazan's songs in the late 1950s and early 1960s included Ritchie Valens, Wanda Jackson, James Darren, Gene McDaniels, and Johnny Crawford.
In early 1962, he was contacted by Rod Pierce of Rendezvous Records, who needed a pianist to replace Ernie Freeman, who was unavailable, on a session.
[3] Hazan recorded other rocked-up arrangements of classical tunes for the Philles label, credited as Ali Hassan, but they were less successful.
By his own account, he worked with Fred Astaire, Herb Alpert, Nick Venet, Terry Melcher, Lou Adler and musicians Hal Blaine, Carol Kaye, Glen Campbell, Leon Russell, Ray Pohlman, Tommy Tedesco and the rest of the first call sessioneers in Los Angeles.
He became a licensed real estate broker, an author/poet, has been a professional fashion photographer, served two years overseas in the armed forces and, after going back to college later in life, graduated U.C.L.A.