Lady Gaga – $5.25 Million, California

Lady Gaga is one of the most famous people in Hollywood right now, and her net worth only keeps going up. She is also one of the industry’s hardest workers, but she prefers to spend her downtime relaxing at this mansion in Hollywood Hills that she spent $5.25 million on.. She Undoubtedly has a high-end home security system to protect his investment. The house was formerly owned by Frank Zappa, and features a private art gallery, a greenhouse, and a rooftop tennis court.