Kelly Clarkson's impending divorce just took another ugly turn -- because her father-in-law says she owes him over a million bucks in unpaid management fees.
Narvel Blackstock, whose son Brandon married Kel back in 2013, has managed her career for over a decade. In the suit, filed this week, his firm says she's fallen behind on payments for her work on her talk show andThe Voice. The suit states that Clarkson has paid the firm $1.9 million this year, but owes another $1.4 million.
According toVariety, the two sides never had a written deal in place, just a verbal agreement for Kelly to pay 15 percent of her earnings, which she'd done since 2003.
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