Blink-182 brought out Stephen Egerton of Descendents, and Matt Skiba of Alkaline Trio, during their Riot Fest set. Some footage can be found below.
@xxclandestinexx Blink 182 with Stephen Egerton from the Descendants Hope Live at Riot Fest Chicago 9/19/25 #blink182 #concert #thedescendants #riotfest #musicfestival ♬ original sound – Chris
@xxclandestinexx Blink 182 Matt Skiba + Tom Delonge Bored To Death Live at Riot Fest Chicago 9/19/25 #blink182 #concert #riotfest #riotfest2025 #poppunk ♬ original sound - Chris