Last night, Sum 41's Deryck Whibley returned to the stage for the first time since his hospitalization for kidney and liver failure in 2014. He was even joined by former My Chemical Romance bassist Mikey Way. You can watch a fan-shot video of Deryck Whibley And The Happiness Machines performing “Fat Lip” as well as an Instagram clip from Way, below.

Read more: Iggy Pop, Tommy Lee helping Sum 41’s Deryck Whibley recover from alcohol addiction

#regram from @tylertreats! Thanks @sum41 for having me tonight – I had a blast & you tore the roof off

A photo posted by Mikey Way (@mikeyway) on