“Dark Horse,” a.k.a. the American Horror Story: Coven song she performed at the Grammys, has finally made it to the top of the “Hot 100.” It is her ninth No. 1, which means she is only eleven hits away from the record. (It is held by the Beatles, of course.) Meanwhile, on the album charts, Frozen is back at No. 1. Soon every child in America will own a copy.