Audiotopsy September 29th, 2016 Shamrock’s Pub & Grill Omaha, Nebraska For those of you who aren’t away, let’s give you some background on the band. Audiotopsy are an American alternative metal supergroup, consisting of Skrape lead vocalist Billy Keeton, former Mudvayne/Hellyeah guitarist Greg Tribbett, former Mudvayne bass player Perry Stern,