Daniel Johnston will be heading a veritable Justice League of indie rock this summer for an appearance at Philadelphia’s POPPED! festival in  June. The band will be comprised of James McNew of Yo La Tengo, Mark Linkous of Sparklehorse, Scout Niblett, Norman Blake of Teenage Fanclub, and Jad Fair of Half Japanese. Though no other dates have been announced at this time, Johnston is leaving a few dates open leading up to the festival for some warm-up gigs and an assault on Lex Luthor’s Legion of Doom Headquarters. [Pitchfork]