Madonna tabs Rihanna as spokes-babe for Vita Coca

I personally think Rihanna is a bit wacky. That raggedy Ann hair color is not a good look.

But, she continues to rock it. Go figure!

New York Post reports Madonna,, an investor in Vita Coco, the New York-based coconut water company, is betting the young singer can sell millions of gallons after signing her on as the face of VC, for an advertising campaign launching this summer.

More here