Bob opened with Rumble last night. See Link Wray post below if you don't know why.
If you still don't know why, go buy some Link, man.
Update: Thanks to Sebastian from PCL LinkDump for informing me that you can hear Bob and the boys Rumble in an MP3 posted at the Link Wray Shack. Many other good links there too.
Update: Typically great tribute at Boney Earnest.