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
One-hit wonder just once." This formal definition can include acts with greater success outside their lone pop hit and who are not typically considered one-hit wonders, while at the same time excluding acts who have multiple hits which have been overshadowed by one signature song, or those performers who never hit the top 40, but had exactly one song achieve mainstream popularity in some other fashion (that is, a "turntable hit" or a song that was ineligible for the top-40 charts). One-hit wonders are usually exclusive to a specific market, either a country or a genre; a performer may be a one-hit