Mariah Carey signs with Jay-Z’s Roc Nation after firing manager

Pop diva Mariah Carey is hoping Jay-Z’s Roc Nation team will help put her back on top.

Page Six has exclusively learned that she’s signing with Roc Nation to manage her career after firing former manager Stella Bulochnikov earlier this month.

“[Mariah’s] cleaning house. She is getting legitimate people, assistants, a lawyer, and Stella is not happy about it,” an insider told us.

Sources previously told us that Carey’s backup-dancer boy toy Bryan Tanaka had taken over as her manager, but his role is creative director.

“Previously, there were all kinds of people involved [in her career] and Mariah didn’t even know those people. She had to distance herself from all that and she’s now cleaning house,” the source said.