She was the girl we loved to hate — nasty Nellie Oleson on “Little House on the Prairie.” But now, through her activism, her one-woman show and her book, “Confessions of a Prairie Bitch,” Alison Arngrim is beloved around the world. Find out why she’s a tireless activist and performer. 

After 30 years and 20 million albums The B-52s are still flying high. The bombastic Fred Schneider helped take them there with mega-hits like “Love Shack.” His creative juices are still churning in his latest, way over-the-top project, The Superions. (click here to watch the video version of this story)

Inventor and entrepreneur Nolan Bushnell approaches each day like a puzzle — what problems will he solve today? The father of video games, the founder of Atari and the man who gave Steve Jobs his first job explains why, at 70, he still looks at the world through 14-year-old eyes.

At 72, one of the world’s top model agencies asked her to pose — not in spite of her age, but because of it. A mother, author, PR executive and passionate believer in inner beauty, Valerie Ramsey isn’t slowing down for a second.

Think the only way to make a difference is to be born into money? Doc Hendley took his passion for good food and music and turned it into an organization that is changing lives, all over the world.