Whether Beyonce's dad is the baby daddy of Nixon has yet to be decided. He is scheduled to take a DNA test soon. What has been decided is that Matthew Knowles has to pay about $8K a month in child support to Alexsandra Wright. If it turns out that Matthew is the father then you can expect that number to jump significantly every month. Despite what TMZ says, Matthew has denied fathering a baby with Wright but I don't think he has denied the 18 months of sex he had with her while he was married.