Pop Goes The Weasel

1. Something is inside this box. And it is winding up.
2. (muffled, inside) It's ME. And I'm getting SPRINGY.
3. Count the turns. When we get to eight — watch out.
4. Round goes the handle and the spring goes tight,
5. One, two, three and it's winding up right,
6. Four, five, six and the lid starts to lift,
7. Seven, eight — and here comes the gift!
8. POP!
9. Wind it up… and POP!
10. Count to eight and then you stop!
11. Down goes the lid and around goes the crank,
12. Wind it up again — you can thank the spring, thank!
13. Round goes the handle in the workshop light,
14. Cogs going click in the middle of the night,
15. One to eight and you know what's near —
16. Everybody ready? The POP is here!
17. POP!
18. Wind it up… and POP!
19. Eight little numbers and the lid goes off!
20. Not before eight and not after eight,
21. Eight is the number — you'll just have to wait!
22. The pop always comes on eight. Never seven. Never nine.
23. So if we're on six — how many more until the pop?
24. …Eight?
25. Ooh — eight is where we're going. We're asking how many more.
26. Six, seven, eight. That's two more.
27. Count the gap, not the destination. That's a clever, tricky thing.
28. Five… and your shoulders start to rise,
29. Six… and there's a sparkle in your eyes,
30. Seven… and you're holding in your breath —
31. EIGHT! POP!
32. Wind it! CHOIR: (crank)
33. Wind it! CHOIR: (crank)
34. How many more? CHOIR: TWO!
35. Seven… CHOIR: EIGHT! ALL: POP!
36. Nine. Ten. Eleven.
37. (inside) Why hasn't it POPPED?
38. Because I kept winding past eight. The number matters.
39. Some things only work if you stop at the right number.
40. Let's go back to eight. One… two… three… four… five… six… seven…
41. EIGHT! POP!
42. Everybody crouch down small! You're in the box!
43. I'll count. On EIGHT — you POP up as high as you can!
44. One! Two! Three! Four! Five! Six! Seven! EIGHT — POP!
45. Again! Get smaller this time! One… two… three… four… five… six… seven…
46. EIGHT — POP! Brilliant popping.
47. We're on five. How many more until eight?
48. ADA: Three.
49. We're on seven. How many more until eight?
50. ADA: One. Nearly there.
51. We're on eight. How many more?
52. ADA: None. Zero. It's already time. POP!
53. Wind it up… and POP! POP! POP!
54. Every single lid in the workshop goes off!
55. Count 'em all to eight and let 'em all fly,
56. Wind it up, wind it up, POP goes the sky!
57. (from inside, sleepy) I'm going to stay in here tonight.
58. Then I'll wind you up in the morning.
59. Eight turns. Not seven. Not nine.
60. Eight turns, at littleactivity.com. Goodnight, spring.

Tap any line to jump there. Timings are close, not exact.