Napster(Emphasis mine) Link
What a pain. There's no way to cancel online, so I called the cancellation number (800.839.4210) and waited on hold for about 20 minutes listening to messages like "Did you know that your Napster subscription lets you access over 5 million tracks? Please hold, and a customer service representative will be with you shortly."
A woman came on the line and asked me a bunch of questions (Was this my first call? Could I confirm my email? Is there a phone number on which she could call me back in case something goes wrong with the call? Can I hold again?). Granted, this is two days after Christmas, but still, I wasn't too happy at how long this was taking.
When she took me off hold again, I told her I wanted to cancel because 2007 was the year 3 of the major labels started selling music without DRM. Back on hold.
She came back -- presumably after consulting a manager or the internet to find out what DRM is -- and then responded, "I don't understand, because all of our music contains DRM." Back on hold. This time, I told her I wanted to cancel because the files were DRMed, and she finally canceled my subscription.