It's Britney, Redskins fans!
In 2003, the Redskins opened the NFL season with a home game against the New York Jets. Keeping with NFL tradition, there was a concert held in the host city and headlined by major stars, and in 2003, one of those headliners was Britney Spears.
Spears performed at NFL Kickoff Live along with Aerosmith, Mary J. Blige and Aretha Franklin. The three-hour event was held in the National Mall in Washington, DC just before the game started at nearby FedExField.
During her set, dancers were appropriately wearing both Redskins and Jets jerseys, but before she took the stage she did a promotional photoshoot in which she donned Redskins attire herself. Spears wore a custom-made Redskins dress in the pictures and the original outfit is currently on display.
Today, the dress can be seen at the Hard Rock Café is Las Vegas, not far from where Spears is currently doing her residency at Planet Hollywood. The Hard Rock is also home to many other pieces of memorabilia from both Spears and other iconic artists.
In the end, Spears proved to be good luck for the Redskins who went on to win their 2003 season opener against the Jets, 16-13.