CNBC Titans

Irrepressible and iconic, Steve Jobs reigned as the undisputed king of Silicon Valley for the better part of three decades. From the Macintosh and the iPod, to iTunes and the iPhone, Jobs secured his legacy as one of the few who dared to “Think Different.”

Maria Bartiromo explores the life of one of the most admired and controversial business titans in history, Jack Welch. Welch transformed General Electric, increasing its market value by $387 billion and making it the most valuable company in the world.

Only in America could two immigrants — an English candlemaker and an Irish soapmaker — create what would become the most powerful consumer goods company in history. P&G's relentless drive for innovation and improvement led to the creation of some of our most cherished products.

Herb Kelleher, the founder and former CEO of Southwest Airlines, grew the airline from a small regional carrier with just four jets into an industry leader. A straight-talking iconoclast, Kelleher is adored by employees and respected on Wall Street.

Jazz musician, arranger, the first black executive of a major record company, producer, entrepreneur, and social activist. With more Grammy nominations and awards than anyone else alive, Quincy Jones is one of the great African-American success stories.

Hershey. Few words sound sweeter. But behind the mouthwatering chocolate is a man, Milton S. Hershey, whose obsessive search for the perfect confectionary turned a pastoral Pennsylvania town into the candy-making capital of the world.

Jack Daniel and his Tennessee Whiskey are American legends revered by rebels and rock stars. In 1866, four years after Jasper “Jack” Daniel became a licensed distiller at the ripe old age of 16, he founded the nation’s oldest distillery in Lynchburg, Tenn. Today, Jack Daniel’s is the most popular whiskey in the world.

The quintessential brash, bold, imperial CEO of the 1980s — when this type of chief executive reigned supreme. Lee Iacocca began his career as an engineer for the Ford Motor Company. He quickly gravitated to sales and rose to become president of the company.

If one had to create a fictional profile on the most successful media titan in history, it would be tough to fashion one more deserving than Barry Diller: CEO of Paramount Pictures, creator of the Fox Network and founder of the USA Network.

He was advertising's original Mad Man. Not to mention creator of the Jolly Green Giant, Tony the Tiger, Toucan Sam, and the Pillsbury Doughboy. Named by Time magazine as one of the 100 most influential people of the 20th century.