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One of Brit's best friends has spoken out to Us on her relationship with the troubled pop star.

Alli insists that Britney is "not crazy", just sad over the situation with her kids.

She also goes on to say that in the eight months she lived with Brit, she never witnessed any drug use.

Despite reports that say otherwise, Alli was not paid to dish, and is choosing to speak out now only because she fears Brit's relationship with Adnan is potentially damaging to her friend.