The musician played "Ora Pro Nobis Lucifer" alongside the band.
During a performance in Oregon, United States, last Wednesday, the 24th, Behemoth Fall Out Boy drummer Andy Hurley to join them on the track "Ora Pro Nobis Lucifer".
Frontman Nergal called the drummer onto the stage and later shared a video of the moment on his social media.
Watch a clip of the presentation below.