HAPPY HAPPY

• 1
  HAPPY HAPPY
  —3:27
• 2
  The Best Thing I Ever Did - Japanese ver.
  —3:33
• 3
  HAPPY HAPPY - collapsedone Remix
  —3:33
• 4
  HAPPY HAPPY - Instrumental
  —3:28

Previews are 30-second clips from Spotify when available.

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