The Inverted King

The magician shows an envelope and leaves it visible explaining that inside are the 4 kings of a giant deck of cards. A spectator FREELY names one of the kings and then the magician opens the envelope and removes 4 jumbo-sized Bicycle cards from inside. The cards are on their backs, except for the chosen one, which is face up!...and not only that, but the chosen king has a different colored back than the rest! Very easy to do! The cards are laminated and will last a lifetime!