Name the regular judge when host is anja rubik
CREATE TABLE "table1_1597866_3" (
  "country" text,
  "name" text,
  "host" text,
  "channel" text,
  "first_premiere" text,
  "regular_judge" text,
  "seasons" real
);
SELECT "regular_judge" FROM "table1_1597866_3" WHERE "host"='Anja Rubik';