Oreo TV Commercial, 'Dunk Challenge: Christina Aguilera's Balancing Act'

In a daring stunt involving a bicycle ride across a tightrope, Christina Aguilera dazzles a large crowd by flipping upside down to delicately dunk an Oreo cookie into a glass of milk. Challengers can compete with her milk and cookie skills in the Oreo Dunk Sweepstakes with #OreoDunkSweepstakes.