Burger King sells 'Proud Whopper' in San Francisco

NEW YORK -- Burger King is celebrating gay pride with a message on its Whopper wrappers.

The fast-food chain says it will post a video online Wednesday that shows scenes from a San Francisco location where it sold a "Proud Whopper." Customers were not told what is in the burger, which comes wrapped in rainbow paper. Once opened up, a message inside the wrapper states, "We are all the same inside."

The idea is that the Proud Whopper is no different from the regular Whopper, despite its colorful packaging.

The marketing effort is part of Burger King's push to boost slumping sales by connecting with customers in a more meaningful way, particularly with the younger individuals fast-food chains are known for courting.