Kenny Chesney is paying tribute to his longtime friend Jimmy Buffett, who died on Friday (Sept. 1). The country singer found a fitting spot on the beach in Key West, Fla., to sing one of Buffett's songs, "A Pirate Looks at Forty."

"Mother, mother ocean, I have heard you call / Wanted to sail upon your waters since I was three feet tall / You've seen it all, you've seen it all / Watched the men who rode you, switch from sails to steam / And in your belly, you hold the treasures few have ever seen / Most of 'em dream, most of 'em dream," Chesney croons as the waves lap the shore.

"So goodbye Jimmy," he writes in the caption. "Thanks for your friendship and the songs I will carry in my heart forever. Sail On Sailor."

He also included a video of himself singing "Margaritaville" with Buffett on stage at a show in Nashville. The "Beer With My Friends" singer was a surprise guest during the performance and fit in perfectly with the Coral Reefer Band.

The two singers shared a friendship as well as a love for the ocean.

Chesney revived Buffett's 1974 hit "Trying to Reason with Hurricane Season" for his 2018 Songs for the Saints album. The "Margaritaville" singer joined him for the new version.

"And now I must confess / I could use some rest / I can't run at this pace very long / Yes it's quite insane / Think I hurt my brain / But it cleans me out, then I can go on," the pair harmonize in the chorus.

Related: 'Margaritaville' Singer Jimmy Buffett Dead at 76

According to a statement posted to his website, the legendary singer-songwriter died on Sept. 1 at the age of 76. His cause of death has not been revealed, but he was surrounded by his loved ones at the time.

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

See Inside Jimmy Buffett's Staggering $6.9 Million Palm Beach Mansion

Jimmy Buffett sure knows how to live the good life. His former 3-bedroom, 3.5-bathroom, 4,039-square-foot mansion in the exclusive Eden Properties neighborhood in Palm Beach is exactly the kind of laid-back home you'd expect the superstar to relax in when he's off the road.

The interior centers around a combined dining and living room with eye-popping vaulted ceilings topped off by skylights, while a massive wall of mahogany-framed sliding glass doors looks out over the pool area outside. The kitchen is decorated in gleaming white, and each of the bedrooms has its own attached bathroom, while the massive master suite also has sliding glass doors that open to both the pool and a bathroom that looks like it belongs in a high-end resort.

The exterior of the house is just as striking, centered around a sparkling pool of deep cobalt blue. The pool area features plenty of lounging, and a loggia just outside the living room offers open-air dining. There are lush gardens, brick paths that walk through elaborate pergolas and a fountain. The property also features a two-car garage with a guest suite overhead, and it offers deeded access to the beach nearby.

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