Beyonce's father Matthew Knowles' child support row will go to court on Friday (13.12.13).
The showbiz patriarch is reportedly two months behind in maintenance to Alexsandra Wright, the mother of his four-year-old son Nixon - who he has never met - and so their financial row will be heard in a Los Angeles courtroom later this week, RadarOnline.com reports.
Matthew - who used to manage Beyonce - was previously branded a "deadbeat dad" by Nixon's uncle after falling more than three months behind his reported $12,000-a-month payments.
Jonathan Wright, Alexsandra's brother, said: "I find it kind of odd that somebody that's proven as somebody's biological father has never ever seen their son.
"And when they're a wealthy individual, it's odd that they would be a deadbeat dad."
In 2009, Beyonce's mother Tina filed for divorce from Matthew after he reportedly had an affair with Alexsandra, who fell pregnant and requested a paternity test. Beyonce, 32, and sister Solange, 27, didn't attend their father's wedding when he re-married earlier this year, tying the knot with former model Gena Charmaine Avery in Houston, Texas in June.