Former Van Halen front man Diamond David Lee Roth heard some on his old music blasting from a bachelor party in a hotel room in Las Vegas so he decided to knock on the door. I'm not sure the guys were all the happy to see him. They must not be very big fans. I know if Dave knocked on the door of my party I would be like..".Dude.. what's up... come on in.. bottom's up! where's the beautiful girls?" These guys seem kinda lame.