Spotify, the recently imported music service so fancy that you need to get an invitation to use it, is already facing multiple lawsuits.

The irony however, is that it has nothing to do with music licensing. Instead, Spotify is being sued for an “evil cookie” (uh, really? Love to see the lawyers try to prosecute this straight-facedly), a piece of tracking software that unlike traditional cookies, re-generates upon deletion. In other words, that any program with the cookie could be tracking personal information unbeknownst to the user.

The cookie was designed by Kissmetrics, who has clients in Hulu, GigaOM, 8tracks, About.me (AOL), Slideshare.net and Spokeo. That’s what you get for doing business with a company called “Kissmetrics.” It was discovered last week by researchers at Berkeley, who blew the whistle on Kissmetrics “shadow mechanisms for tracking.”

[via Digital Music News