Foals. They’re back. But that name no longer seems to be fitting if new single, the title track to their upcoming album, “What Went Down” is anything to go by. This isn’t the sound of a frolicking year-old horse. This is the sound of a stallion. One as black as the night. Red-eyed. Chomping at the bit. Grunting from its nostrils and tearing through the land at a relentless pace. The new album’s out on August 28. That gives you plenty time to brace yourself for the onslaught.