Andrew Lloyd Webber, 72, $1.2 Billion

Andrew Lloyd Webber is a famous composer and widely considered the most commercially successful composer of all time, with $1 billion to show for it! The composer has had several hit musicals and has composed pieces for blockbuster movies like Cats and By Jeeves, which won critical acclaim.

Apart from his musical prowess, Webber runs the Really Useful Group, a company that operates theaters and is involved in film production. It’s safe to say that the composer and his generations are set up for life as they will continue earning from royalties when Webber decides to hang his boots.