David Hasselhoff to Ex: Pay Up!

Careful what you sue for: A judge has ruled that David Hasselhoff's ex, Pamela Bach, has to pay him back after filing frivolous legal actions against him.

TMZ reports that the judge in their divorce case says Pamela's multiple suits forced The Hoff to pay his lawyer to fight back.

Since lawyers don't come free, the judge has ordered Pam to pay David a big chunk of change — $7,550.80.

Pam has to send him $3,000 up front, after which she can pay $500 a month until it's even, or have it deducted from her spousal support.