 During Labor Day weekend , 2011 , Cornell joined Pearl Jam onstage at Alpine Valley in Wisconsin for <unk> ( Pearl Jam 's twentieth anniversary celebration ) . On September 3 , he joined them for a four @-@ song set , which included the songs " <unk> Champion " ( a Mother Love Bone cover with Cornell on vocals ) , " Say Hello 2 Heaven , " " Reach Down , " and " Hunger Strike . " The September 4 appearance included a four @-@ song set with Cornell joining in on " Hunger Strike , " " Call Me a Dog , " " All Night Thing , " and " Reach Down " ( which also included Glen Hansard , Dhani Harrison of <unk> , <unk> Garza , and Liam Finn ) . 
