Jimmy Buffett, the American singer-songwriter who went from Key West beach bum to billionaire behind the always-on-vacation "Margaritaville" commercial empire, has died at the age of 76.

"Jimmy passed away peacefully on the night of September 1st surrounded by his family, friends, music and dogs. He lived his life like a song till the very last breath and will be missed beyond measure by so many," a statement on the website said on Saturday.

Buffett, nominated for two Grammy awards and winner of numerous Country Music Awards, built his name touring his folk-country songs around the United States in the 1970s.