Arnold Schwarzenegger Arrives For Arnold Sports Festival AustraliaHe'll be back — from open heart surgery.

Arnold Schwarzenegger is in stable condition recovering from a surprise open heart surgery that followed complications from a planned heart valve replacement.

The "Terminator" star and former California governor is in good spirits and his first words upon waking from surgery were "I'm back," according to his rep Daniel Ketchell.

In a statement, Ketchell said, "Yesterday, Governor Schwarzenegger underwent a planned procedure at Cedars-Sinai to replace a pulmonic valve that was originally replaced due to a congenital heart defect in 1997."

A team of doctors was prepared to perform the surgery in case the valve replacement did not work. This is the second time Schwarzenegger has had heart surgery; he had an aortic valve replaced in 1997, during which he also suffered complications and required a follow-up procedure.

Schwarzenegger received well wishes on Twitter from fans and friends, including "Terminator 2" co-star Robert Patrick.

Schwarzenegger, who did not fare well on his stint as "Celebrity Apprentice" replacement host for Donald Trump, continues to act. He appeared in "Terminator: Genisys" in 2015 and is set to reprise his famous role in the upcoming "Terminator" reboot.