Mariah Carey has slammed her estranged husband Nick Cannon calling him a 'motherf***er' adding that she knows that he cheated on her.
Carey, who was recently in Tokyo, crooned Billie Holiday's Don't Explain, a song about a cheating lover, TMZ.com reported.
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The 44-year-old singer changed the lyrics of the song and crooned, "And I know you cheat/Right or wrong, don't matter" to "I know you cheated motherf***er?."
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The couple, who have been married since 2008, have three-year-old twins together, Monroe and Moroccan, reported the Huffington Post.