This video is part of B/R's series "The Rookies," where we take the helmets off the players and bring you closer to their lives and personalities.

Raider Nation. The Black Hole. Pick whatever phrase you want, there's no denying that Raiders fans are among the most passionate, rowdy and sometimes delirious fanbases in the NFL.

One trip to Oakland, and you can feel and see the Silver and Black all over the city. The Raiders truly represent the mindset and culture of the the city.

Imagine being drafted by the Raiders, and all of a sudden you go from a college atmosphere like UConn to this maddening obsession the Raiders have 365 days a year.

Check out the video above as Raiders rookie linebacker Sio Moore and roommate D.J. Hayden get one of the most unbelievable introductions to Raider Nation you'll ever want to see.

Let us know in the comments below: Are Raiders fans indeed the most passionate in the NFL? Will Sio Moore and D.J. Hayden have an impact on Oakland's defense this year?

Thanks for watching!