Clem Cattini Roussos, the Goodies, John Betjeman, Malcolm and Alwyn, John Schroeder, Paul McCartney, Hank Marvin, Mike Batt, Chris Spedding, Bob Downes, Dave Kelly, Christopher Neil, Evelyn Thomas, Barbara Pennington, Slapp Happy, Mike Berry and Grace Kennedy, and prog rock bands including Beggars Opera, Amazing Blondel and Edwards Hand. Cattini has played on at least 44 UK number 1 singles, including "Telstar", Ken Dodd's "Tears", Rolf Harris's "Two Little Boys", Clive Dunn's "Grandad", "Ernie (The Fastest Milkman in the West)" by Benny Hill, "Whispering Grass" by Windsor Davies and Don Estelle, Peters and Lee's "Welcome Home", Typically Tropical's "Barbados", J. J. Barrie's
Don Estelle of "Linda Smith's A Brief History of Timewasting" as "Little Don" of the "East End Art Mafia". In his autobiography "Sing Lofty: Thoughts Of A Gemini", Estelle was extremely bitter about modern-day entertainment, attacking those who refused to rerun "It Ain't Half Hot Mum" as "tight-crutched, white-trousered morons". According to his obituary in "The Independent", "in recent years Estelle cut a slightly sorry figure, dressed in his "Lofty" outfit, setting out a stall of his tapes and singing to passers-by in shopping centres. He played a dirty old man in the promotional video for "The Sun" Page Three Girl Jo