Vanessa Hudgens sued by producer

Suit claims 'HSM' star breached settlement agreement

"High School Musical" star Vanessa Hudgens has been sued for $5 million by her former producer who claims she breached a settlement agreement.

In the Los Angeles Superior Court lawsuit filed Monday, Johnny Vieira alleges Hudgens fired him shortly after the success of "Musical," but later negotiated a settlement with him. However, Hudgens' attorneys failed to file the settlement agreement with the court for approval.

Vieira claims  his original contract with Hudgens, dating back to July 5, 2005, is still in force and that she and her label, Hollywood Records, owe him for royalties since then.

Vieira also claims that Hudgens' father, Greg Hudgens, has defamed him by sending several e-mails to others, including Hudgens' manager, claiming the producer is a "predator" who preys on young artists.

Hudgens' reps could not immediately be reached for comment.