 He also wrote the English lyrics for "Mama", best known as a 1960 hit song for Connie Francis.He then became a consultant on music plagiarism.His clients included George Harrison, Bob Dylan, Elvis Presley, Elton John, Rod Stewart, Dolly Parton, Johnny Cash, Billy Joel, Peter, Paul and Mary, Neil Diamond and The Kingston Trio also The Beatles, Michael Jackson, Charlie Daniels.