The latest viral video making waves on the internet stars Christopher Lloyd, and includes appearances by celebrities such as Tony Hawk, Moby, Terrell Owens and Agnes Bruckner. In the video, these stars¬†are presenting testimonials about the HUVr, a hovercraft skateboard that would be amazing if it actually existed. The video managed to catch the attention of over 4.3 million viewers in just 2 days. Unfortunately, this product isn’t real…yet, at least! It’s a pretty convincing and star-studded advertisement that might actually inspire huge tech firms to start creating a product as awesome as the HUVr. What are some of your favorite viral videos?