#10 Osman Kent: The rock-and-roll life

Osman Kent is a serial technology and media entrepreneur best known as the founder and CEO of 3Dlabs, which was into fabless chip manufacture that were used in films like Titanic and The Matrix and helped the 3D graphics revolution on the PC. He sold the company to Creative Labs in 2002 for whopping $170 million.

After his stint at 3D labs he retired and became an aspiring music mogul with his own record label, Songphonic Records. He also bought English mansion formerly owned by Phil Manzanera of Roxy Music, which has its own recording studio.

He came out of self imposed hiatus from startups and found some irresistible new tech startup which later he used it to found Numecent, which could change the way software industry makes and sells its products.

#9 Richard Branson: The living embodiment of 'carpe diem'

Sir Richard Charles Nicholas Branson is an English business magnate, best known as the founder and chairman of Virgin Group of more than 400 companies.

He simply cranks up the new startups like record labels, airlines, mobile-phone companies. Like Musk, he's got a space-exploration company too. He's also written a bunch of bestselling books.

He's known for his adventures, be it climbing Mount Everest with his family or his attempts to  break various world records in the air and at sea. These attempts have often ended badly, requiring daring rescues. That doesn't stop him. He's even been known to show up in the movies making light of himself.