Deadmau5 is going on offense in response to Disneys trademark infringement suit. Last week, Disney moved to block a trademark request filed by the artist, whose real name is Joel Zimmerman, on grounds that the Deadmau5 logo is too similar to the companys own Mickey Mouse logo. Now Zimmerman and his lawyers have filed a cease and desist letter against Disney, claiming that it used his 2009 hit Ghosts n Stuff without the artists permission. On Twitter, Zimmerman linked to short video remix on Disneys site that shows Mickey Mouse running around a haunted castle to the tune Deadmau5s track.