Sing-a-Long 4 is a Chinese DVD/book featuring seven songs from tenth season and one from The Great Discovery.

Songs

  1. Doing it Right (Short Version)
  2. Favourite Place (Short Version)
  3. H is for Harold (Short Version)
  4. Navigation (Short Version)
  5. There's Always Something New (Short Version)
  6. Responsibility (Short Version)
  7. Strength (Short Version)
  8. Engine Roll Call
  9. Thomas, You're the Leader
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