Find the name of the Artist

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Across
  1. 2. "driver's license"
  2. 4. "Memories bring back memories bring back you"
  3. 7. "Billie Jean is not my lover"
  4. 9. "that's what makes you beautiful"
  5. 11. "take it eeeeaaaaasy on me"
  6. 13. "I will always love youuuuuuuuuuu"
  7. 14. "don't start now"
  8. 15. "staaaaaaaaaaaay"
Down
  1. 1. "smells like teen spirit"
  2. 3. "imagine all the people"
  3. 5. "Shine bright like a diamond"
  4. 6. "let it go, let it go"
  5. 8. "I'm in love with the shape of you"
  6. 10. "You used to call me on my cellphone"
  7. 12. "I'm the bad guy"