Mariah Carey being sued by her former manager, Stella Stolper. Stolper blames the singer for breach of contract. The ex-manager is now demanding a large sum of money for the singer. Stolper was until a a year ago, the manager of Mariah. In the time that the singer has a notorious relationship had James Packer was Stolper, a confidant of the artist. Mariah came last week also in the news when they open spoke out about her struggle with bipolar disorder.