I'm surprised this only got mentioned on the 3rd page
When Lady Gaga copies Madonna's song from the '80s it's a big deal, but when Ke$ha's entire career is a cheap caricature of what Lady Gaga did last year it's glossed over by ATRL.
That Glee episode just aired Tuesday. I don't think they wrote, filmed, and edited the music video in such a small amount of time. I tink it was just a coincidence. :]