Tracy Porter celebrates with fans in the stands after returning an interception for a touchdown in the fourth quarter against the Pittsburgh Steelers. (Ron Chenoy-US PRESSWIRE)

I’ll admit it. The Oakland Raiders have one of the most hardcore and loyal fan bases in the NFL. If you don’t believe me, check out this video of a Raiders wedding. Nothing says ‘celebration’ like a dark and heavy gathering.

The Raiders haven’t had a winning season since 2002, yet fans come out in full force every year even for away games. Raiders fans love to travel to Denver to see their team take on the Broncos in one of the most storied rivalries in the NFL.

That’s why the Denver Broncos have officially declared Sunday’s game against the Raiders “Orange Sunday.” Fans attending the game are encouraged to pull out and wear all of their orange duds to light up the stadium and drown out the silver and black.

No wonder Peyton Manning chose the Broncos in free agency. The chant at the University of Tennessee is “Go, Big Orange!”

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