"Paul Anka heard the original 1967 French pop song, Comme d'habitude (As Usual) performed by Claude François, while on holiday in the south of France. He flew to Paris to negotiate the rights to the song. In a 2007 interview, he said, "I thought it was a bad record, but there was something in it". Quelle/Zitat: https://en.wikipedia.org/wiki/My_Way

Some time later, Anka had a dinner in Florida with Frank Sinatra and "a couple of Mob guys" during which Sinatra said "I'm quitting the business. I'm sick of it; I'm getting the hell out."

Back in New York, Anka re-wrote the original French song for Sinatra, subtly altering the melodic structure and changing the lyrics:

"At one o'clock in the morning, I sat down at an old IBM electric typewriter and said, 'If Frank were writing this, what would he say?' And I started, metaphorically, 'And now the end is near.' I read a lot of periodicals, and I noticed everything was 'my this' and 'my that'. We were in the 'me generation' and Frank became the guy for me to use to say that. I used words I would never use: 'I ate it up and spit it out.' But that's the way he talked. I used to be around steam rooms with the Rat Pack guys – they liked to talk like Mob guys, even though they would have been scared of their own shadows."
Anka finished the song at 5 am. "I called Frank up in Nevada – he was at Caesar's Palace – and said, 'I've got something really special for you." Zitat/ Quelle:https://en.wikipedia.org/wiki/My_Way