Arnold Schwarzenegger took to social media Saturday to wish son Joseph Baena a happy birthday. 'Happy birthday @projoe2!' the action star, 74, wrote in the caption. 'I am so proud of you and I love you!'The Hollywood staple praised Baena for his dedication to his career and fitness endeavors. 'You are crushing it in the gym, in your real estate career, and in acting,' he said. 'I know this will be another fantastic year. 'He shared a series of photos of himself with Baena, in a restaurant, bicycling and posing next to a street art of Schwarzenegger's bodybuilding days.
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