Age at first $1 Billion: 23, Mark Zuckerberg 31, Bill Gates 32, Taylor Swift 33, Rihanna 35, Jeff Bezos 36, Kim Kardashian 37, Lebron James

Age at first $1 Billion: 23, Mark Zuckerberg 31, Bill Gates 32, Taylor Swift 33, Rihanna 35, Jeff Bezos 36, Kim Kardashian 37, Lebron James