The richest celeb - George Lucas - has a $10 billion fortune that would see him sit 190th on the Forbes Billionaire List. Tesla, Twitter and SpaceX entrepreneur Elon Musk is the world’s richest person with a $230 billion fortune. Frenchman Bernard Arnault drops in second with a $210 billion fortune made from selling luxury branded handbags, champagnes, jewellery and perfumes.