By the time it was announced, everybody knew Beck would be performing at Yahoo! Open Hack Day. I made sure I was going to be down on the lawn to see it. The show was awesome. Beck’s doing a show tomorrow at Shorline (the Download Festival). If you have tickets for that show, you won’t be disappointed.
My favorite was when they played “Hell Yes”. I was expecting the usual version I’ve heard on the radio and in the video. Instead they heavily mashed it up with David Bowie’s “Fame”, Queen’s “We will rock you” and a little bit of Justin Timberlake’s “Rock your body” for good measure (I thought I also caught a little Parliament too, but I could be wrong). For an event that’s all about mashups, it was very appropriate.
Now of course we’ll have a difficult time topping the entertainment next time (hopefully there is a next time). But I have no doubt that the people setting up hack day are up to that challenge. 
Filo blogged about the performance over at the Yahoo! Anecdotal blog. There’s even a video that was played partway through the sets. It was hilarious, poking fun at all of the Yahoo!’s that can frequently be seen anywhere but their desks (in the gym, on the basketball court, etc).
Photo by Scott Beale / Laughing Squid.