Sing-a-Long 4 is a Chinese DVD/book featuring seven songs from tenth season and one from The Great Discovery.
Songs
- Doing it Right (Short Version)
- Favourite Place (Short Version)
- H is for Harold (Short Version)
- Navigation (Short Version)
- There's Always Something New (Short Version)
- Responsibility (Short Version)
- Strength (Short Version)
- Engine Roll Call
- Thomas, You're the Leader
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