I have some too. It's obviously some sort of spam bug. As it asks the recipient to answer to be removed it tries to become a snowball. So, do not answer at all and just delete them and it will go away.
Just deleted 38 of them this morning. Recieved the during the span of about 3:00 pm yeterday until now. One person even accusing me of being the problem. Believe, me I only have 8 names in my address book and only 3 are steelers.
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Carter D10 9p/10k
Richard Sinkler
Maybe b0b has an answer.I got at least 15 of these things. Looks like a worm virus attaching itself to e mail address books. My Symantec virus/Pro. does not indicate anything. You may want to clean internet files/cookies etc. and see if it helps.