In the seemingly never-ending back and forth between toy company GoldieBlox and the Beastie Boys over the use of 'Girls' in a GoldieBlox advert, things have kicked up a notch considerably, with the Beastie Boys' legal team filed a law suit against GoldieBlox.

Beginning with a simple ad which features kids building a Rube Goldberg machine to a parody of 'Girls', the company changing the sexist lyrics to those of female empowerment. It all seemed fine and dandy, but the Beastie Boys are well known for their dislike of being used as part of ad campaigns. After asking the company why they used the song, GoldieBlox filed a pre-emptive suit against the band. What followed was a series of open letters, which were all pretty civil; both sides enjoyed the others works but the Beastie Boys declared it was copyright infringement and so GoldieBlox took the video down.

It seems, however, that that isn't enough for the Beastie Boys' legal team. The suit reads, "GoldieBlox achieved and continues to achieve additional publicity, press coverage, and, upon information and belief, greater sales of its products, as a direct result of the Beastie Boys' perceived affiliation with the GoldieBlox Advertisement. Unfortunately, rather than developing an original advertising campaign to inspire its customers to create and innovate, GoldieBlox has instead developed an advertising campaign that condones and encourages stealing from others." It continues that the band suffered from the ad and "are entitled to recover from GoldieBlox the damages and lost profits they have sustained as a result of GoldieBlox's unlawful acts of copyright infringement and to recover from GoldieBlox the gains, profits, and advantages GoldieBlox has obtained as a result of the wrongful conduct alleged herein." [via Pitchfork]