This is fast becoming the hottest viral video on the web, and it's one of the best. Here's the story behind Richard Dunn's hilarious self-shot, self-edited video made to the tune of "All By Myself," by Celine Dion.

Caught overnight at Las Vegas' McCarran Airport with practically no one else around, Richard Dunn could have found many ways to pass the time until his flight in the morning. Instead, he put his trusty iPhone to work and made this hilariously cheesy music video for Celine Dion's 1996 cover of "All By Myself."

And he really did make it all by himself, ingeniously utilizing of the airport's escalators and moving walkways. Check it out for yourself: