Allan "Jo" Johnston is an Australian advertising creative executive and copywriter who was successful as a jingle writer, particularly in the 1970s and 1980s. He was born in Adelaide, Australia. Together with his long-time business partner Alan Morris, he formed the Australian advertising agency Mojo which enjoyed much Australian and some international success in the 1980s and whose name survived until 2016 as Publicis Mojo, the Australian subsidiary of the French multinational advertising and communications company holding Publicis Groupe. Career Born in Adelaide Johnston started out as a copywriter in that city before taking a job as an assistant producer in an Adelaide ad agency, then moving into the copy department writing jingles. He relocated to Sydney in 1968, joining an agency called Marketing and Advertising, later to be known as Hertz Walpole Advertising. In the mid 1970s he was teamed with freelance writer Alan Morris and together they had immediate success as a team working on campaigns for Hertz Walpole's clients Meadow Lea margarine ("You oughta be congratulated") and Tooheys beer ("How do you feel?"). In 1973 they left the agency and in 1975 started their own consultancy and continuing to work on such accounts as they grew their business. In 1979 their creative consultancy became the full-service ad agency Mojo and Meadow Lea and Tooheys amongst other clients, signed with the new shop. During the 1970s and 1980s Mojo was the hottest creative agency in Sydney and Mo and Jo had success jointly authoring World Series Cricket's "C'mon Aussie C'mon ". and later the Australian Tourism Commission's spot with Paul Hogan's instruction to put another "Shrimp on the barbie. The Mojo approach to TV advertisements used a colloquial and irreverent style, often with a catchy jingle to simple accompaniment and frequently sung in Jo's own "gravelly" voice. Contrasting against the clipped and British-imitating style of voice presenters on Australian TV up till that point, Mojo ads highlighted Australian idiom and its laconic accent. Ads such as “I’m as Australian as Ampol”, “Hit ‘em with the Old Pea Beau” (insectide), “Everybody loves Speedo”, “I Can Feel a Fourex Coming on”, “Every Amco tells a Story” (for Amco jeans) all came out of the Mojo agency in the 1980s. The use of Peter Allen's I Still Call Australia Home to promote Qantas was developed at Mojo in the late 1980s and until 2011 this campaign concept was still used by