KATSEYE

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Across
  1. 1. How many members are there?
  2. 2. Who is the youngest member?
  3. 4. What song first made it onto the Billboard 100?
  4. 5. What is the title of their first EP?
Down
  1. 1. Who is the leader of the group?
  2. 3. What is the name of their official fandom?