Mariah Carey and her longtime manager, Stella Bulochnikov, have mutually decided to part ways. According to our sources, Bulochnikov found it increasingly difficult to manage Carey due to her erratic behavior, culminating in the bizarre video Carey posted to Facebook a few weeks back.
  We're also told that Mariah's boyfriend, Bryan Tanaka, has gotten more and more involved in Mariah's day-to-day work schedule and overall career. We reached out to Mariah and Stella, so far no word back.
  (The Blast)
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