There's no denying 50 Cent's success as a businessman. From G-Unit Records to Vitamin Water, the Queens native has racked up millions with his ventures. Now, Fifty is moving down the accessories lane with his latest investment: 3D sunglasses.

The rapper-turned-actor has dipped his hand into GUNNAR Optiks, a technology company that develops digital performance eyewear for enhancing the computer viewing experience. For those with sensitive eyes, viewing LCD screens and digital projections can cause a strain in focusing. The company 50 Cent has invested in creates lenses that extinguish the "polarizing light" and "ghosting" effect that often strains the eye.

Fifty was most likely attracted to the sunglasses rather affordable price tag. Selections range from $70 to $200, and come in an array of fashions. GUNNAR Optiks co-founder Jennifer Michelsen says the 'Before I Self Destruct' creator first expressed interest in the company at a charity event hosted by Justin Timberlake.

As was the case with Vitamin Water-maker Glacéau, 50 Cent serves as both investor and endorser of his new product. He recently took to Twitter to promote the GUNNAR shades to more than 3 million of his followers. The rhymer also served up a photo of himself decked out in a pair.

"Tweetin with my gunnar glasses on trick! u aint got these suckas. get ur money right ima get like 50 new hoes wit" 50 Cent tweeted.

According to Michelsen, Fifty is helping to bring more celebrities on board to endorse the 3D sunglasses.

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