Kelly Clarkson is being sued by her former management company, which is run by her ex-husband Brandon Blackstock’s father (Picture: REX)

Kelly Clarkson is being sued by her longtime management company, Starstruck Management Group.

The lawsuit has a more personal connection to Kelly due to the fact it is run by Narvel Blackstock, who is the father of the singer’s ex-husband Brandon Blackstock.

According to Variety, the management company have filed a claim in Los Angeles Superior Court, which states it is owed $1.4 million (£1 million) in unpaid commissions.

The complaint states the American Idol winner has not paid the full commission this year for her work on The Voice and The Kelly Clarkson Show.

The suit is alleging a breach of oral contract and is seeking declaratory relief and accounting.

According to Variety: ‘The company has represented Clarkson for the last 13 years, and was paid a 15% commission on her gross earnings. The suit states that Clarkson has paid the firm $1.9 million this year, but owes another $1.4 million.

Brandon and Kelly announced their split earlier this year (Picture: Matt Baron/REX)

‘The suit also claims that Clarkson will owe at least $5.4 million by the end of the year. It does not appear that Clarkson and Starstruck have a written management agreement.