it was put together by a guy named jack moriarty. he asked 20 of his friends to record themselves dancing alone basically, just doing their thing by themselves. the whole idea is that when you're dancing alone, there's probably someone somewhere dancing along with you. because they may be 3,500 miles away but they've got to get their groove on. >> i never thought about it that way. you're never really dancing alone, even when you're dancing alone. >> exactly. ♪ >> jeff was actually inspired sitting in his car. the guy next to him was just jamming away to a song. he was watching her, but when she saw him watching, she stopped. he started thinking you know what i bet there are hundreds of people if not thousands around the city listening to that same song doing the exact same thing in their cars right now. >> even that guy in seattle dancing like nobody's watching is surrounded by hundreds of people and they're really not even watching. they couldn't care less. they're like oh good for you, you're dancing, have fun. >> but the truth is