In 2007, Stephanie Lenz posted a 29-second video to YouTube of her baby dancing in the kitchen with Prince’s “Let’s Go Crazy” playing in the background. Claiming use of their song amounted to copyright infringement, Universal Music Corp. (Universal) sent YouTube a takedown notice under the Digital Millennium Copyright Act (DMCA). Lenz, with representation provided by the Electronic Frontier Foundation (EFF), sued Universal on the premise that Universal had abused the DMCA takedown provisions by violating Section 512(f), which bars misrepresentations of unauthorized use. According to Lenz, before sending its notice, they failed to take into account the possibility that Lenz’s video was shielded by the fair use doctrine. Last week, in Lenz v. Universal, a.k.a. the “dancing baby case,” the Ninth Circuit sided with Lenz in a ruling that will impose new burdens on copyright holders policing hosted content.