Jay-Zhas reportedly expressed his concerns over protégé Rihanna, fearing that the Barbadian beauty is working too hard.
According to SEE RAUNCHY PICS OF RIHANNA IN MTV'S GALLERY HERE!

Jay-Z is also said to worried that RiRi could be back in contact with her ex-boyfriend Chris Brown, after her restraining order on Breezy was recently lifted.
The insider explained: "Jay said she is a role model for a lot of your kids. A little bit of controversy is alright, he said, but too much and she could very easily lose all the respect she has worked so hard to win overnight,”
New pictures of Brown's assault on Rihanna emerged last week, showing the extent of the Umbrella hitmaker's injuries after the attack back in 2009.