Having started his career as a repertory actor and film extra, Jess Conrad was cast in a television play "Bye, Bye Barney" as a pop singer. He was noticed by Jack Good, who included him in his TV series Oh, Boy, and then was signed to Decca Records and had a number of hits, including "Cherry Pie", "This Pullover", "Mystery Girl" and "Pretty Jenny"; also recording for Columbia, Pye President and EMI record labels.
During the 1970s he spent some time in the stage shows Godspell and Joseph and the Amazing Technicolour Dreamcoat, and also featured in a cameo role in the Sex Pistols film The Great Rock 'n' Roll Swindle. In 1977, no fewer than 7 of Jess Conrad's singles were included in the 'World's Worst Record' list, chosen by listeners to Capital FM DJ Kenny Everett's show, and "This Pullover", voted 6th worst song ever, later featured on an LP dedicated to the songs voted for, together with two other Conrad recordings "Cherry Pie" and "Why Am I Living?"
In the '90s Conrad made regular cameo appearances on Jim Davidson's version of The Generation Game on BBC1. Also in 1992 Jess Conrad appeared in the Christmas Special of Big Break presented by Jim Davidson and John Virgo. He was the "booby" prize of the show presented to Ruth Madoc from Hi-De-Hi. After contestants that failed to make the final of Big Break were often nearly given a box set of Jess Conrad's hits.
In recent years, Conrad has appeared in a number of documentaries and television programmes, often offering stories of violent encounters with other famous people. In a BBC Arena documentary about the legendary record producer Joe Meek, Conrad boasts of biting off part of the nose of singer Heinz during a confrontation backstage at a package show in the early 1960s.  Similarly, in 'Sex, Secrets & Frankie Howerd' he tells of threatening to cut off comedian Frankie Howerd's ears when Howerd made undesired sexual advances to Conrad in a dressing room.
He was awarded the Officer of the Order of the British Empire (OBE) in the 2011 Queen's Birthday Honours for charitable services. In the 2009 film Telstar: The Joe Meek Story, he is played by Nigel Harman. He appears in one scene, depicting his backstage fight with Heinz and his biting of Heinz's nose. Conrad himself played the role of Larry Parnes in the film.
- The Ugly Duckling (1959)
- Friends and Neighbours (1959)
- Rag Doll (1961)
- Konga (1961)
- The Queen's Guards (1961)
- The Golden Head (1964)
- Are You Being Served? (1983)
- Larkin C 'Virgin Encyclopedia of Sixties Music' (Muze UK Ltd, 1997) ISBN 0-7535-0149-X p125
- Kenny Everett's The World's Worst Wireless Show – http://www.chronoglide.com/wwwshome.html
- Maidenhead Advertiser Online: Shane Richie talks panto from the spooky Hellfire caves
-  Chelsea Lodge No. 3098 100 Years 1905–2005
- "The Strange Story of Joe Meek". IMDb. Retrieved 12 March 2011.
- "BBC: Jess Conrad bites off fellow singer Heinz's nose". BBC. Retrieved 20 March 2011.
- "Sex, Secrets & Frankie Howerd (2004 TV)". IMDb. Retrieved 12 March 2011.
- "Viewing Page 9 of Issue 59808". London-gazette.co.uk. 11 June 2011. Retrieved 31 December 2011.