>>gretchen: if las vegas wasn't vibrant enough for you, cirque du soleil's classic show missed air is. anna kooiman went behind the scenes. good morning. >> for 20 years missed air has been dazzling audiences. 8,000 shows have been down. 12 million people have been able to get an up-close look at it. we're taking you behind the scenes. they are letting me dangle from trapezes and bungee cords. let's take a look. cirque du soleil is celebrating 20 years of taking the world by storm. all that started with this very show, missed air. we're going to take you inside and show you how all the magic happens. obviously sicker due slow is known for -- sicker do you soleil is known for