Video: Beyoncé - 'Countdown'

5, 4, 3, 2, 1. Beyoncé blasts off with the cute and colorful video for “Countdown,” the third single off her chart-topping album 4. A pregnant B shows off her baby bump, works her body in a dance studio, rocks with her all-female band, and gets dolled up in a variety of chic looks in the Adria Petty-directed clip (“Sweet Dreams”). She channels screen siren Audrey Hepburn in a black turtleneck, changes neon leotards in the blink of an eye, and harkens back to her Dreamgirls role with a Deena Jones-inspired look. All hail the Queen B.