Liv Maessen is an Australian pop singer who had hits in the early 1970s with "The Love Moth", "Knock, Knock Who's There?" and "Snowbird". In 1969, Maessen had finished second in the New Faces talent show. Her prize included a recording contract with Ron Tudor's Fable Records which released her albums, Live for Life (1971) and Best of Liv Maessen (1973). She won the 1970 Logie Award for 'Best New Talent'. In the Go-Set Pop Poll, Maessen was voted in the top 5 as most popular female vocalist in both 1970 and 1971. For her single "Knock, Knock Who's There?", Maessen became the first Australian female artist to be awarded a gold record certificate. After her recording career, Maessen turned to cabaret and club work by the mid-1970s.