"As a matter of fact ... I tried to get a job at McDonald's. I couldn't get a job. They would not hire me. It was a problem to get a hairnet over the afro," he said.
Wall Street Career: Tepper runs $12 billion distressed debt hedge fund Appaloosa Management. He has one of the best long-term track records and was the highest-paid hedge fund manager last year.
Former Citigroup CEO/Chairman Sandy Weill sold New York City directory books.
First Job: In the mid-1950s, Weill tried selling New York City directory books, but apparently he spent more time playing arcade games instead.
Wall Street Career: Weill scored his first gig on Wall Street working in the back office of a brokerage firm. During his career, he worked his way to the top of The Street becoming the CEO/Chairman of Citigroup.
Warren Buffett sold chewing gum and Coca-Colas and delivered newspapers.
First Job(s): Starting at age 6, Buffett would go door to door and sell packs of chewing gum. His other door-to-door sales stints included selling magazines and Coca-Cola's. He also ran a newspaper delivery route.
Wall Street Career: Buffett (a.k.a. "The Oracle of Omaha") is the chairman and CEO of Berkshire Hathaway and is widely considered one of the most successful investors.
Julian Robertson served in the U.S. Navy after college.
First Job: After graduating from the University of North Carolina at Chapel Hill, Robertson served in the United States Navy for two years.
Wall Street Career: Robertson began his career on The Street at Kidder Peabody & Company in 1957 as a sales trainee.
In 1980, he started Tiger Management Company, one of the most successful hedge funds in the world. He has also seeded a bunch of his former employees who started hedge funds known as "Tiger Cubs." Forbes estimates that he has a networth of $2.8 billion.
Ray Dalio worked as a caddy at a golf club as a kid.
First Job: When Dalio was just 12 years old, he worked as a caddy at a golf club frequented by Wall Street types. As a caddy, Dalio was able to make $6 a bag and he later took those funds to buy his first stock.
Michael Bloomberg worked as a parking lot attendant.
First Job: Michael Bloomberg worked as a parking lot attendant while he was enrolled at Johns Hopkins University in order to pay his loans for tuition.
Wall Street Career: Bloomberg accepted an entry-level position at Salomon Brothers in 1966. He was laid off from Salomon in 1981 and started his own IT company, which is now the media empire Bloomberg LP. He is currently the mayor of New York City. Forbes estimates that he has a net worth of approximately $27 billion.
*BONUS: Dan Loeb left Wall Street for a brief period to work at a record label.
Second Job: OK it's not a first job, but Daniel Loeb left his first finance job at Warburg Pincus to work for Chris Blackwell's Island Records (U2 and The Cranberries) as the director of corporate development.
Wall Street Career: Loeb currently runs hedge fund Third Point LLC. He has an estimated networth of $1.5 billion.