Alligator

Alligator! Alligator!
Can be your friend, can be your friend, can be your friend too
The alligator is my friend he can be your friend too
If people would just understand that he needs friendship too!

Alligator! Alligator!
Can be your friend, can be your friend, can be your friend too
The alligator ate my friend he can eat your friend too
If people would just understand that he needs protein too!

Thanks to Georgia Innes for this extra verse:

Alligator! Alligator!
Can be your friend, can be your friend, can be your friend too
The Alligator is my friend he can be your friend too,
But I'd rather have him on my shirt, than have him for my shoes.

Thanks very much to Megan Connor for this extra verse:

Alligator! Alligator!
Can be your friend, can be your friend, can be your friend too
The alligator ate my book, he can eat your book too,
If people would just understand, that he needs knowledge too!

Thanks very much to Amanda Lang for this extra verse:

Alligator! Alligator!
Can be your friend, can be your friend, can be your friend too.
The alligator sailed the seas, he sailed them far and wide.
If people would just understand that he needs exercise!

Actions:

Alligator! Alligator!: make gator jaws with arms and snap them shut
Can be your friend... too: wiggle back and forth as if doing the "boogie"