What happened to Barbie?

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Across
  1. 3. Doll
  2. 4. -less
  3. 7. Bye
  4. 8. Rhymes with Michael Jackson song
  5. 11. Numero uno
  6. 12. Barbie's favourite colour
Down
  1. 1. Come on Barbie let's go party
  2. 2. No clue for this
  3. 5. You'll need it
  4. 6. Step
  5. 9. Or isn't
  6. 10. Foot
  7. 11. Search