Soundgarden lead vocalist Chris Cornell personally asked Kinney to join him, Pearl Jam guitarist Mike McCready, Soundgarden drummer Matt Cameron, Screaming Trees drummer Barrett Martin and Guns N' Roses bassist Duff McKagan in the tribute show to the band Mad Season at Seattle's Benaroya Hall on January 30, 2015. Kinney played bongo for the song "All Alone" while a track with Layne Staley's original vocals were played. The performance was released as a live album in August 2015, entitled "Mad Season / Seattle Symphony: Sonic Evolution / January 30, 2015 / Benaroya Hall".