Rapper-producer Jonathan “Lil Jon” Smith is best known for turning everyday words like “yeah” and “okay” into bloodcurdling sonic extravaganzas. He’s crafted hits for the likes of Usher and Ludacris. But given the state of the recording industry, he’s focusing more on a concept that doesn’t lend itself to his trademark exhortations: diversification.

Lil Jon’s non-music revenue streams include a line of Oakley sunglasses, an energy drink and a wine label. On a recent visit to the DailyFinance studios, Jon estimated that these ventures account for nearly a third of his annual earnings, which total an estimated $11 million, by Forbes’ last count. In this video Lil Jon explains why there’s no better time than now to diversify.

Lil Jon Explains How He Is Creating A Diversified Portfolio

Lil Jon’s most successful business venture is his Crunk!!! Energy Drink, which allowed him to tap into a familiar lifestyle niche. “Crunk is a word we’ve been using in the South forever-it basically means energy,” he explains. “Crunk is past tense for crank. Once you crank it, it’s crunk … it’s off the hook, it’s crazy.”

Jon launched the beverage in 2002 with the help of late liquor baron Sidney Frank, the father of Grey Goose vodka. The two connected while Grey Goose was sponsoring concerts for Jon’s group, Lil Jon & the Eastside Boyz. After Frank passed away in 2006, Kimberley Clark veteran Tom Mahlke came in to run Crunk, and these days the energy drink pulls in a reported $15 million per year. Jon won’t reveal how much of that sum comes his way, but given the structure of comparable celebrity ventures, his annual take may well approach seven figures.

Jon’s next venture took him to a different side of the beverage business. In 2008, he started a wine label, Little Jonathan. The idea stemmed from a small run of private label wine that he’d commissioned for a party earlier that year. When he saw how easy it was to enter the wine business on a permanent basis, he brought in Alison Crowe — a California winemaker who has worked at Chalone Vineyard, Curtis Winery, Bonny Doon Vineyards and others — to create a merlot, a cabernet and a chardonnay. Bottles can be had for $15.99 online; sales figures aren’t available. But the chardonnay won a silver medal at the 2009 Los Angeles Wine and Spirits Competition.

“People tried to act like it was Boone’s Farm or something,” Jon says. “But when people tasted it, they saw that this was real and not anything ghetto at all.”

Planning for Retirement: Lil Jon Diversifies

Jon’s other ventures include a line of Oakley sunglasses ($100 per pair) and an Apple (AAPL) iPhone application ($0.99 per download) that features recordings of all his most popular sayings. He won’t disclose how much he earns from either, but he admits they’re part of his retirement plan.

“I want to have something to fall back on, so that’s a reason you create these different business ventures,” he explains. “I don’t want to rap forever.”

For now, he’ll use music to raise the profile of his other products, even though Crunk Rock‘s singles are unlikely to enjoy the success of 2004’s smash hit, Yeah. That song spent 12 weeks atop Billboard’s Hot 100 list and ranks 11th on Billboard’s all-time list, thanks in part to Lil Jon’s unique ululations.

“If I had $20 for every time someone asked me to go ‘Yeah!’ or ‘What!’ or ‘Okay!” he says, “I wouldn’t need to [win] the Lotto.”