See what billionaires, CEOs and other business leaders looked like in high school

Before they were on shows like "Shark Tank," contributors on CNBC or running for president, the world's most famous billionaires, business magnates and CEOs were just regular high school students.

Barbara Corcoran was unrecognizable as a high school cheerleader with blunt bangs and long, blonde locks -- but it's clear the real estate mogul's spirit and pep have withstood the test of time. Corcoran's co-star, Mark Cuban, also rocked a decidedly different 'do in high school, but other than his shoulder-length tresses, the outspoken billionaire hasn't aged a day!

Click through the slideshow below to see the likes of Steve Jobs, Warren Buffett and Marissa Mayer from debate club to the computer lab and everywhere inbetween.

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What famous business leaders looked like in high school
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What famous business leaders looked like in high school
Mark Cuban

Mark Cuban may have ditched his wild 'do, but otherwise, he hasn't aged a day since he took his senior portrait in 1976!

(Classmates.com/Reuters)

Barbara Corcoran

"Shark Tank" star and real estate magnate Barbara Corcoran was a cheerleader in her heyday -- and she hasn't lost any of pep since 1969.

(Classmates.com/Getty)

Barbara Corcoran

We weren't kidding!

(Classmates.com/Getty)

Barbara Corcoran
(Classmates.com/Getty)
Warren Buffett

The business magnate was quite the dapper young man in 1947.

(Classmates.com/Getty)

Steve Wozniak

These days, the Apple co-founder opts for more casual looks than his tux in his 1968 senior portrait.

(Classmates.com/Getty)

Steve Jobs

Wozniak's business partner, Steve Jobs, rocked the man-bob in 1972.

(Classmates.com/Reuters)

Ralph Lauren

Ralph Lauren had the same penchant for plaid suits in 1957!

(Classmates.com/Reuters)

Paul Allen

Microsoft co-founder Paul Allen looked totally current with his Warby Parker-esque frames in 1969.

(Classmates.com/Getty)

Bill Gates

Plaid shirt? Check. V-neck sweater? Double-check. Bill Gates' style sure hasn't changed since the 8th grade in 1969.

(Classmates.com/AP)

Paul Allen and Bill Gates

Adorable! Allen and Gates have taken their friendship from the computer lab to the basketball court.

(Classmates.com/Getty)

Oprah Winfrey

Before Oprah was one of the biggest TV personalities and businesswomen in the world, she was voted "Most Popular" in her 1971 high school yearbook.

(Classmates.com/AP)

Oprah Winfrey

Love those peace sign earrings!

(Classmates.com/PA)

Michael Bloomberg

No doubt 1960 Debate Club helped prepare Michael Bloomberg for a future in business and politics!

(Classmates.com/AP)

Michael Bloomberg

Just take a look at those determined eyes ...

(Classmates.com/AP)

Marissa Mayer

These days, Yahoo CEO Marissa Mayer speaks sans notecards. Here she is at her 1993 homecoming dance.

(Classmates.com/Getty)

Marissa Mayer

The only thing that's changed since this 1993 debate is Mayer's hair -- the CEO went from a wavy brunette to a straight blonde bob!

(Classmates.com/Getty)

Donald Trump

Trump's soccer days are behind him -- but his competitive spirit lives on.

(Classmates.com/Reuters)

Donald Trump

He even had a bit of the same combover in 1964!

(Classmates.com/AP)

Marcus Lemonis

"The Profit" star Marcus Lemonis, chairman and CEO of Camping World and Good Sam Enterprises, rocked a 'fro in 1988.

(Classmates.com/AP)

Abi Heller

We wonder what Classmates.com and Intelius CEO Abi Heller's former schoolmates think of his biz!

(Classmates.com)

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