The world's largest firework illuminated the sky above Steamboat Springs, Colorado after being let off on February 8.<br /><br />Weighing at almost 2,800 pounds and just over five foot high, the record-breaking firework was shot out of a 26-foot tube at over 300 mph into the sky.<br /><br />"Wow, holy cr*p!" the filmer can be heard saying in the video.<br /><br />An official from Guinness World Records attended the event and officially declared the firework as the largest in the world.