Singer Inks Deal With Jay-Z's Management Company
6:00AM ET October 21st, 2010
Contributor : Chris G.
A Rocky Williform Company

Rihanna announced on Wednesday (October 20th) that she has officially joined Jay-Z's Roc Nation management company. Jay-Z has been Rihanna's mentor since he was an executive at Def Jam. The singer told the Associated Press that she is "so excited to take this next step in my career."

Rihanna joins Wale, Melanie Fiona, Mark Ronson and others under the Roc Nation umbrella. The singer is also forming Rihanna Entertainment, a multi-pronged company to oversee various aspects of her brand, including music, films, fashion, book ventures, and a fragrance line.