Too young to go into the lounges they toured, the boys were forced to sit backstage between shows and work up their own brand of music.
King, Jon and Vangelis, Buddy Miles, Rod Stewart, Cher, Celine Dion, Air Supply, Adrian "Tricky" Thaws, Diane Warren and Guy Roche Ian Lloyd, Ray Manzarek, Ronnie Laws, Lindsey Haun, Sheryl Crow, Danny Peck, Michael Ruff, Bobby Kimball, Steve Porcaro, Lodgic, CIRCA:, Jonathan Elias, Lodgic, Arc of Life, Billy Sherwood and Chris Squire.
Recent work includes singing the "Oh oh oh It's Magic" cover for the Ozempic campaign Haun re-joined Billy Sherwood in the Yes spin-off supergroup Circa, formed in 2006, also with Tony Kaye (ex-Yes) and initially Alan White.
[2] In September 2012, Haun announced that he was working on a Jon Anderson solo album with Elias and M. Sherwood, but the project subsequently stalled before completion.
[2] In 2020, Haun joined Arc of Life, a new band spun off from Yes by Sherwood and Yes' lead singer Jon Davison.