Kevin Federline is not what you would call a fan of Britney Spears' big plan to bring their son Sean Preston on stage during her big Las Vegas residency.
Spears announced that Sean would "probably be on stage" during the extravaganza, making surprise appearances from time to time. Not so, K-Fed says.
Kev, who just married Victoria Prince, was not consulted on this, and has since made it pretty clear that he's not keen on the idea of his son up there.
The FedEx man's opinion is important, too, as they share custody.
Britney will perform about 100 shows in Las Vegas over two years.
The duo also has a second son, seven-year-old Jayden James.
As for checking out Britney Spears in Vegas, we don't expect the Fed to pay to see that, though if she threw in some comp tix in with spousal support, well ...