As we already told you, Madonna is locked in a bitter custody battle with ex-husband Guy Ritchie over their son, Rocco. And apparently, she's had a few choice words to say about her ex.

According to The Daily Mail, at Madonna's concert in Nashville this week she was heard calling her ex-husband the “C” word.

The comment came after a fan attempted to propose to Madonna. “I’m looking for a husband, not a c**t,” she said. “I already married a c**t.” Of course in addition to Guy, Madonna was also married to Sean Penn, but it’s doubtful she was referring to him, since they are on good terms.

Speaking of Madonna's “Rebel Heart” tour, the trek tops this week's Billboard Hot Tours chart. Madonna brought in $7.5-million from 47,267 tickets sold during the final four stops on her European tour in November and December.

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