Mariah Carey keeps all her fan mail

Yes, it's apparently true - Mariah never throws away a letter, however odd:

She tells British newspaper the Daily Star of one letter, "(It said) Jennifer Lopez is a skank who can't sing. I'm not encouraging the negativity but I think these fans are hilarious."

Actually, we suspect it doesn't really count as a letter from a fan if it's one returned because you put too little postage on, but thanks for sharing.