Is this a new iTMS promo? Or does Apple just love me?

I just received an email yesterday from Apple offering three free songs – any songs – for no apparent reason. It contains a standard coupon code that adds three song credits to my account in the iTMS. But I didn't do anything – I haven't registered my nano since my first try when I was too early. I haven't bought a new 5G iPod, and I won't for a while – a guy's gotta eat his ramen, not to mention I have a wedding to save for. So what gives?

There's a 5G iPod featured in the image that's in the email, but the coupon code is for songs, not free videos. The whole thing is just strange. Anyone know anything?