H is for Hedgehog

Humpty Dumpty Hedgehog sat on The Wall,

Humpty Dumpty Hedgehog had a great fall.

All the King's Daleks and all the King's Ninjas*
Couldn't put Humpty Dumpty Hedgehog together again.

Mostly because Humpty Dumpty Hedgehog was actually six hedgehogs standing on top of each other, which is not a comfortable place to stand.
So due to this, and musical differences,  they decided to go their separate ways.
Small hedgehog and red ninja went and formed a successful duo and had several hits.

*The King's horses and men were busy elsewhere.