Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Find a song that describes sadness

### Response:
A popular song that describes sadness is "All by Myself" by Celine Dion. It's about a person struggling to let go of a lost relationship and wishing for unconditional love. The lyrics, including "All by myself, don't want to be all by myself, anymore" reflect loneliness and sadness.