Answer:
I'm an animal. I love marching. I always wear a tuxedo. What am I?
I look like a tiny trombone
I am needed for most animals and hardcover books
I am a rock group with four members all of whom died in plane crashes. Who am I?
A spirited jig I dance bright, banishing all but darkest night. Air can't kill me but water can. Share me, I won't get less unless wind ruins me. What am I?
When is it bad luck to see a black cat?