It turns out that ChiroJoel was able to sneak his camera into this year's ICCA quarterfinals concert. Here's the Youtube playlist of all the songs performed. Keep in mind that the SoCal VoCals and These Guys songs are private, so as to not give their opponents an advantage; once they're no longer in the running, they'll be made available to watch.
In the meantime, though...some highlights:
"Apologize," by some guy who gets over-played on the radio. That there's a lady winning the award for Best Beatboxer. Heck yes.
Host group TroyTones rocks up some Sister Act.