In Zac Brown Band's latest single, 'Knee Deep,' the message is clear: "When you lose yourself, you find a key to paradise." And the king of the tropical paradise, Jimmy Buffett, knows that better than most.

Buffett appears in ZBB's summery new tune as a guest singer, but he really steals the show. In his pop-up verse, the 'Margaritaville' legend packs his bags and heads toward the blue water:

"Wrote a note, said be back in a minute / Bought a boat and I sailed off in it / Don't think anybody gonna miss me, anyway / Mind on a permanent vacation / The ocean is my only medication / Wishing my condition ain't ever gonna go away."

As usual, Brown brings some smooth vocals and a catchy chorus, just what we love from the easygoing singer who helped us find patriotism in 'Chicken Fried' and celebrate love in 'Free.' But if anything can be learned from the Georgia native's music, it's that he really loves to relax on the beach -- and we love that we can live vicariously through his songs and take a vacation in our heads.

Grab yourself something cold and fruity, and whistle along (in between sips) to 'Knee Deep,' which appears on the band's 2010 'You Get What You Give' album.

Rating: 8/10

Preview Zac Brown Band Feat. Jimmy Buffett, 'Knee Deep'

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