In 1978, The Ham Brothers band had replaced Wilkes and Young with Bob Parr and Ken Rarrick, both from the acclaimed jazz education program at the University of North Texas. Then in 1979, David Gates, of Bread fame, hired the entire Ham Brothers band to tour. The act was billed as David Gates and Bread. A year later pop diva Cher secured the services of the same band. When Cher recorded the project album Black Rose, Warren joined the band for the recording and the subsequent supporting tour.
In his early years, Ham was a vocalist for the Fort Worth, Texas based Bloodrock (1972-74). Ham appeared on the last two Bloodrock albums: Passage and Whirlwind Tongues.
Warren Ham has also toured with Kansas in the John Elefante era (1982-83) (played addditional keyboards, flute, alto and soprano saxophones, harmonica and backing vocals), Toto (band), Donna Summer and Frankie Avalon. He has recently toured with Olivia Newton-John as an instrumentalist and vocalist performing John Travolta's part with Newton-John on her No. 1 Grease hit, You're The One That I Want, as well as backup vocals.
When Kerry Livgren left Kansas to form his own Christian rock band AD, Ham went with him as the new band's lead singer. Ham appeared on the first, second and fourth of AD's four albums: 1) Timeline 2) Art of the State and 3) Prime Mover.
Since the demise of AD, he has released solo recordings in the contemporary Christian music genre and is the author of Beginning Blues/Rock Harmonica (ISBN 0-8256-1154-7)
The original Ham Brothers drummer and lifelong friend, Dahrell Norris, who also toured with Sonny and Cher, passed away from liver disease on December 15, 2007, in Albuquerque, NM. His whole career, from early teens until his late 50's, was dedicated to music and percussion.
Warren Ham is currently appearing as an integral member of Donna Summer's live band on her 2008 tour supporting her latest release "Crayons".