It was a jolly good time Saturday at John's Crazy Socks as John and Mark Cronin celebrated seven years in business with a holiday pop-up shop at their Farmingdale headquarters.

The father-son duo started the world's largest sock store on Long Island.

More than half of the company's employees have developmental disabilities.

John's Crazy Socks is hosting a special "12 Days of Giving" sale for the holidays so that shoppers can stock up on socks for their loved ones.

A portion of all of the proceeds will go to charity.