Skateboarding took off as a popular pastime for American youngsters in the 1970s and soon became a competitive sport. By the 1990s, Tony Hawk was its top player. Today, the champion skateboarder has retired from competition, but has stayed involved in the sport and the industry it spawned. He has lent his name to enterprises from video games and skateboards to apparel. And he is actively working with young skateboarders in the inner city.

Tony Hawk turned his childhood passion for skateboarding into a career and, most recently, a charitable foundation for youth

Hawk, who is now 41, says he was a difficult child who made life hard for his teachers and parents. But a gift from his brother when Tony was 9 years old turned his life around.

"He gave me his old skateboard," he explains, "and I just started doing it around the neighborhood with my friends and eventually made my way to the skate park in our city. Once I was there and I realized the possibilities of it, I was hooked."

A young superstar on wheels

Obsessed with his new pastime, Hawk was entering competitions by age 11. At 14, he signed with a professional team and appeared in a famous series of videos. Over the years, he invented dozens of moves in what is called "vertical skateboarding," an extreme sport involving aerial acrobatics. He has won more 70 professional skateboarding championships and has become a business brand, making skateboards and accessories, sports clothes and video games and DVDs.

Hawk performs an invert on the lip of a skateboard ramp

In the early days of the sport, Hawk says many did not take skateboarding seriously.

"When I was actually in my 20s, and people said, 'What do you do for a living?' and I said, 'Professional skateboarder,' they would just scoff. It just wasn't even something they considered was possible, or at my age."

In contrast, he says, today people are excited to learn about what he did.

"I don't want to say it's a more exciting time, because I've always loved it and it's always exciting to me, but it's much more universal."

Helping youngsters skate to a more confident future

A skateboarding pioneer, Hawk has invented dozens of original moves, like the stalefish

In 2002, the former champ founded the Tony Hawk Foundation to help young skateboarders build skate parks in the inner city. It aims at doing more than just providing a place to skate. The kids are part of the process of getting the skate park built, and Hawk says it gives them a sense of accomplishment and shows adults that kids can work together toward a goal.

"We don't just come in and say, 'Here's a skate park, you're welcome,'" he stresses. "We want to support those who have already tried to get a skate park going and actually petitioned the city, gone to city council meetings, held fundraisers. Whatever they've done, we wanted to validate that work, and I feel that's the real accomplishment for them, is that they saw it through, they cut through all the red tape, and they finally made it happen. And there it is. There is literally concrete evidence of their work."

So far, the Tony Hawk Foundation has distributed more than $2.7 million to support and partially fund more than 400 skate parks, in places from Homer, Alaska to Ironton, Ohio.

Taking skateboarding into the mainstream

Tony Hawk joined President Obama at the White House on Fathers' Day

Hawk says skateboarding once had the aura of an outlaw sport because there were few places for youngsters to skate except where it was illegal. But he insists the sport is here to stay.

"[Kids] are going to keep skating, and you need to provide facilities for them, and there has been a turnaround in terms of perception and embracing skating for what it is, and I feel like we need more of those facilities in places where there is more at-risk youth."

Skateboarding is getting more and more recognition. In June, Hawk paid a visit to the White House and demonstrated his skills by skateboarding down the hallway of the Executive Mansion.

That ride shows that skateboarding, with the help of Tony Hawk, has gone mainstream.