Arnold Schwarzenegger flaunted his legendary muscles while marking his 79th birthday. The “Terminator” star was pictured pumping iron in what appeared to be Los Angeles in a pair of celebratory birthday pics Thursday. 6 Arnold Schwarzenegger showed off his physique for his 79th birthday, as seen above. ✨🙏”6 Schwarzenegger, seen here in 2024, wrote that he wants to turn “the fitness industry upside down.” Getty Images6 The star, seen here in 1966, is iconic for his fitness accomplishments.