Remember how I mentioned Valve putting up the front of a site related to L4D2? For the (fictional) band Midnight Riders, who were supposed to play the stage of the finale of Dark Carnival.
Well...the sites has been expanded and updated. Check it.
http://www.midnight-riders.com/
There's some hilarious stuff on there...apparently they got dropped from their label and are now touring the US and don't give a fuck about the "green flu" as they call it.
Also, one of the guys (the most disgusting one apparently, and the biggest jerk) is called Ox. That alone is a good reason to be interested in this. 
They even have merchandise up on the Valve store and a youtube song of theirs. I'd encourage you to read it all, because there's some funny stuff behind the band history and success. And they're from Texas apparently. :
[quote]You heard right, folks: The Midnight Riders got dropped from our label. And our take on that is: Good riddance to bad bullshit. Who needs ‘em? The Riders have never been about the corporate game anyway. The Riders are about the road, brother—connecting with fans, setting off fireworks, and delivering the best goddamn live show in the business.
So all you diehard Midnighters out there eager to get your hands on High Heels and Brushed Steel, rest easy. Cause you’ll be able to buy it from the Riders themselves on our No Salvation fairgrounds tour this fall! We’re taking the album with us and selling it on tour. If you’re looking for the absolute greatest greatest hits album $25 can buy, and you wanna give a big “Screw youâ€