A small shrine of flowers appeared in front of Margaritaville in Key West, Fla., on Saturday. For residents of the southernmost city in the continental United States, Saturday was a day to mourn and toast the singer who died at 76 on Friday and who, with his 1977 anthem “Margaritaville,” made himself and his onetime home famous. Key Westers posted tributes on social media, dropped well-wishes at the Margaritaville restaurant and store — the Buffett businesses that started here and expanded into an empire of hotels, products like Landshark Lager, and more — and started planning a celebration of Mr. Buffett’s life for Sunday, starting at, naturally, 5 p.m. “It’s Five O’Clock Somewhere” was a chart-topping country duet Mr. Buffett recorded with the singer Alan Jackson in 2003. Megan Burgess, 55, learned of the singer’s death when a friend texted her at 5:35 a.m. She has lived in Key West for 10 years and first visited 20 years ago — because of Mr. Buffett’s music. She fell in love with the island and started returning every year.

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Persons: Jimmy Buffett’s, “, ”, Westers, Buffett, Alan Jackson, Megan Burgess Organizations: Historic, Buffett, Sunday, Key West Locations: Key West, Fla, United States, Key