Grooveshark is quite a predatory name for a music streaming service constantly under threat from record labels. The new year has gotten off to a woeful start for the music service, based entirely on user-uploaded content, with Universal Music Group dragging it to court over the presence of unauthorized copies of its content on Grooveshark. The fresh lawsuit comes barely three months after it resolved its legal dispute with EMI by agreeing to a licensing deal. In a filing with a New York State Court, UMG alleged that Grooveshark hosts unlicensed content from its pre-1972 catalog. The label also slammed Grooveshark for its refusal to deploy copyright filtering software, alleging that it has based its business solely on copyright infringement.