The 48 Hours Music Fest just went down in Las Vegas with tons of surprises. One of the biggest surprises was David Draiman celebrating his wedding and jumping in with Steel Panther. Read more after the break.

One thing is for sure, the guys from Steel Panther are amazing musicians. They have had tons of superstars sit in and jam on some old skool songs. At the 48 hour Music Fest David Draiman dropped by to do some Def Leppard (which sucked) and some Zeppelin (which ruled). Check out the video below.