Madonna

Try picturing Madonna -- one of America's fittest and most famous -- serving pastries behind a counter. It's hard to imagine, but believe it or not, when Madonna moved to New York, she earned extra cash by working the registers at Dunkin' Donuts.

"I was sacked from Dunkin' Donuts for squirting the donut jelly all over the customers," Madonna has said.

Barack Obama

Before Obama won the bid as the first African-American president of the United States, our president-elect was giving himself stomachaches and brain freezes at his first job scooping ice cream at a Baskin-Robbins in Hawaii.

"Chocolate ice cream gets real hard," Barack was quoted as saying in New York Magazine. "Your wrists hurt. [Carpal tunnel syndrome, although] they didn't call it that."

So.. the gist of the story is

Determination and perseverance is the key to success !