A career in the entertainment industry is very unpredictable. Some performers spend years trying to hit the big time and never succeed while others are an instant hit. For some, this success is short-lived and for others, they establish a successful career and have offers of work right through to retirement. The level of success an entertainer achieves in their career will dictate their earning potential. While it can take many years for someone in the entertainment industry to get rich, others are already earning big bucks before they even hit their thirties. This allows them to live a lifestyle of luxury while they are still young. This may include money in the bank, large properties, fast cars, international travel, designer clothes, and all the bling they could ever have hoped for. Here are the 20 richest celebrities under 30.