With American indie acts like Vampire Weekend borrowing from African music, it's fitting that Johannesburg's BLK JKS moved to the indie outpost of Bloomington, Indiana, to record their debut. After Robots is full- on polyglot prog-rock: Like the Mars Volta, BLK JKS' best moments are roaring fusions — South African-style chants laid over Lindani Buthelezi's scorched-earth guitar leads and Tshepang Ramoba's amazingly busy drumming. There are bits of jazz and dub, but mostly these guys want to rock. When they do it their way, they sound like nothing else.