Michael Tammero sat down with legendary song and dance man Dick Van Dyke, discussing the award-winning performer's show biz beginnings and new book, Keep Moving.

At 89 years old and with a career spanning seven decades, Van Dyke has solidified his icon status.

But he never planned on being an entertainer.

It all started when 17-year-old Van Dyke took up his buddy's offer to do a comedy act on the West Coast.

"Why not? We'll have a lark," the young Van Dyke figured.

"I never got out of the business," he said.

Van Dyke went on to star in such beloved films as Bye Bye Birdie, Mary Poppins and Chitty Chitty Bang Bang, and TV series The Dick Van Dyke Show and Diagnosis: Murder.

He picked up several awards along the way, including five Emmys, a Tony and a Grammy.

His new book Keep Moving has a message for people young and old.

"Keep moving, and have some interest. You cannot get up in the morning and have nothing to do. You can be 90 years old--it doesn't mean you're done for."

Watch the interview above.