Weird Al Yankovic has created a spoof of Lady Gaga's "Born This Way" (called "Perform This Way"), and Mama Monster is NOT amused.
On his blog, Yankovic explains that Lady Gaga insisted on hearing the song before giving her blessing, which he claims was unprecedented in his career. Although all profits from the song were to have been donated to the Human Rights Campaign (in a nod to the original song's intention as an "earnest human rights anthem"), Gaga turned down the parody upon hearing it. (While parody artists are protected under the First Amendment, Yankovic traditionally requests permission from the artists he spoofs.)
I think it's pretty funny - check it out for yourself:
UPDATE (via Dlisted): Weird Al updated his blog to say that Lady Gaga's Manager admitted to him that he never played the song for her. Gaga has since heard it, approved it and it will go on his next album. Weird Al has also kept his promise and will donate profits to the HRC.