Jay Z has been coming under fire over the last couple of days - after signing an agreement with the NFL to help them figure out how to deal with their "diversity" issues.

Now pop superstar Rihanna is coming out - and Blasting her longtime friend and mentor - even co-signing a post that called him "shady".

Many of Jay Z's critics claim that the rapper, who is a billionaire, is selling out his people for a check. Others say that his agreement undermines NFL player/activist Colin Kaeperneck, who is currently being banned from the league.

Rihanna in this case seems to be one of Jay's biggest critics. She recently liked a post by activist Shaun King which called Jay Z "shady."

Here is the proof:

Jay Z helped make Rihanna become the star that she is today. It was Jay that first signed Rihanna to Def Jam and Jay Z that was featured on Rihanna's first mega-hit song Umbrella.

It was only less than a year ago when the 31-year-old shaded the NFL and reportedly declined an offer to entertain during the 2019 installment because of her support for ex-NFL star Colin Kaepernick. "The NFL and CBS really wanted Rihanna to be next year’s performer in Atlanta. They offered it to her, but she said no because of the kneeling controversy. She doesn’t agree with the NFL’s stance," another insider told Entertainment Tonight. "The offer and exposure would have been great for Rihanna as she’s planning a new album and tour but she stuck to what’s right in her eyes." Among the other stars who reportedly declined appearances during the halftime show included Cardi B, Pink and Adele.