Who Sang This Song?

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Across
  1. 3. Lovesick Girls, As if it's Your Last
  2. 4. Perfect, Castle on the Hill
  3. 6. Intentions, Baby
  4. 7. Stay With Me, Too Good at Goodbyes
  5. 9. Grenade, Just the Way You Are
Down
  1. 1. Treat You Better, In My Blood
  2. 2. Bad Guy, Lonely
  3. 3. Dynamite, Life Goes On
  4. 5. What Makes You Beautiful, Night Changes
  5. 8. Love Story, You Belong With Me