Jimmy Buffett hasn't had a Top 20 solo hit since "Margaritaville" in 1979. He hasn't even released a new album since 2009. He performs maybe 40 concerts a year at most. Still, according to CelebrityNetWorth.com, his total net worth of $400 million puts him just behind such musical icons as Paul McCartney, Elton John and Mick Jagger. How does he do it?

In one word, "Margaritaville". It has become his brand and given birth to a number of products and properties.

MARGARITAVILLE is a chain of restaurants, retail stores, hotels, nightclubs, and casinos, all of which live to serve the notion that “wastin’ away again” is not such a bad thing, at least for the well-off weekend warrior.

MARGARITAVILLE FOODS. Buffett keeps it fairly tropical with products like Calypso Coconut Shrimp, Captain’s Calamari Rings, tortilla chips, salsa, dips, rimmers, and (surprise) margarita mix. Plus, there’s Margaritaville-branded coffee… because even a Parrothead has to sober up sometime. Remember, it’s 5 o’clock a.m. somewhere!

MARGARITAVILLE APPAREL. No heels or loafers in the Margaritaville shoe collection; it’s flip-flops and boat shoes all the way.

MARGARITAVILLE OUTDOOR FURNITURE. If you really want to live the lifestyle 24/7, you’ll need one of his $350 Adriondacks, preferably under one of his shade tents, perhaps next to a $300 Margaritaville tiki bar.

via For Christmas Birthday Boy Jimmy Buffett, Who Needs Record Sales To Be Worth $400 Million? | Stop The Presses! (NEW) - Yahoo! Music.

In addition to the all-Margaritaville-all the time theme Jimmy is also an author with an autobiography and 4 novels to his credit. Check out the song that made him the richest resident of that "5 O'Clock Somewhere" locale known as "Margaritaville".