On which week was the result safe and the song choice " across the universe "?
CREATE TABLE "performances" (
  "week_num" text,
  "theme" text,
  "song_choice" text,
  "original_artist" text,
  "order_num" real,
  "result" text
);
SELECT "week_num" FROM "performances" WHERE "result"='safe' AND "song_choice"='\" across the universe \"';