Today's youngsters might know skateboarding legend Tony Hawk as much for his business endeavors as his athletic feats.
Hawk's historic landing of the 900 at the 1999 X Games in San Francisco coincided with the launch of a clothing line with his siblings, Hawk Clothing, and the Tony Hawk Pro Skater video game series.
"We started the clothing brand just before the video game release, and that was the perfect storm of recognition and brand awareness," the now 48-year-old former pro skater told CNBC.
He's come a long way since. According to his website, his video game series has surpassed $1.4 billion in sales, and his diversified empire now includes popular books, sporting goods, and film production.