ONTD

Chris Brown lost his marbles on "GMA," and now the hot-headed singer has lost his publicist. We hear that Brown's spokeswoman, Tammy Brook, will no longer be representing him after the star trashed his GMA dressing room, smashed a window and left without his shirt from the morning talk show earlier this week. Sources close to the star tell us she and Brown have decided to end their relationship following his meltdown on "GMA." Brook couldn't be reached last night.

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ETA: her statement to TMZ

I am an entertainment/music publicist and was hired as a publicist, as they often are, to work specifically on his music publicity for the term up to the release of Chris Brown’s F.A.M.E. album, which was released on Tuesday March 22 and is entering the Billboard and iTunes charts at number 1 this week. I love and support Chris and it has been an honor to be a part of this album and I look forward to the possibility of working with him again in the future.”

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