Pitting Red Bull vs. Orange Juice
Nakamura and Carlsen are well known for their favorite drinks - Red Bull and Orange Juice, respectively. Their battles on the chessboard have mostly resulted in an Orange Juice win, and when they met again in Bilbao, no one was expecting anything better than a draw for Nakamura.
Imagine the schock when Nakamura won his first ever game against the World Champion. Carlsen played horribly, way below his normal level. His assesment of critical moments was miles away from the truth, and Nakamura converted his first ever win against the champ.
Here is the game, complete with annotations: