A MACHINE HEAD fan joined the San Francisco Bay Area metallers on stage at their February 10 concert at Gasometer in Vienna, Austria to perform the song "Aesthetics Of Hate" with the four members of the band. A guy in the crowd had a banner that said "Let Me Play 'Aesthetics Of Hate' — Seriously, I Can Play It". MACHINE HEAD guitarist/vocalist Robb Flynn asked bassist Adam Duce whether they should invite the fan up on stage and give him a chance to show off his skills. Flynn then said "Let's do it!" and gave up his axe for the song and just sang for the entire track while the fan played Robb's guitar.
Fan-filmed video footage of the performance can be viewed in the top clip to the right.