LeBron James
After returning to Cleveland, LeBron sold his 16,700 sq. ft. Miami home in October of 2014. It was listed at $17 million but was later bumped down to $15 million and was once owned by Sylvester Stallone and Madonna.
Lady Gaga
Lady Gaga owns an amazing property in Beverly Hills that was built by the founder of the consumer-products division of Warner Bros., Dan Romanelli. He built an underground “bat cave” that Gaga then turned into a two-lane vintage bowling alley.