Mojo was an Australian advertising agency formed in Sydney by Alan Morris ("Mo") and Allan Johnston ("Jo") in 1979.
Johnston and Morris had immediate success together working on campaigns for Hertz Walpole clients Meadow Lea margarine ("You oughta be congratulated") and Tooheys beer ("How do you feel?")
In 1979 their creative consultancy became a full-service advertising agency and Meadow Lea and Tooheys amongst other clients, signed with the new shop.
During the 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.