business has always been good this time of the year but things got better when journalist anderson cooper sported silverman's battery operated heated clothing on new years eve. he talked about his new favorite store on cbs late show with stephen colbert tuesday night. >> i called up the store, warming store in philadelphia, i found on the internet, and i bought -- >> the warming store. >> yes. >> and, so, i spent $2,900 buying electric clothing. >> i always watched colbert but i went to bed early last night. last morning i woke up my facebook and my cell phone was vibrating like crazy report report during our interview a curious customer who saw cooper came into escape the cold. >> i'm an eagles season ticket holder and wanted to buy something for my hands and feet. >> reporter: warming stories an actual store here in fill at majority of the business is done here in this warehouse, where heated gear like this is shipped all around the world. silverman's cousin allie south er is with the company. >> he surprises people when i say, you know, heated clothing , sell heated clothing , does that exist, i can't bel