It seems like all the blogosphere wants to talk about today is Ke$ha‘s crappy “Saturday Night Live” performances this weekend (slow news day?) and how she is all Lady Gaga wanna-bein’ it up and totally stole Sia’s “Buttons” performance style since her (pretty wack) costume glowed in the dark, blah, blah … After checking out Sia’s performance on Jimmy Kimmel a few years back, I can certainly see the similarities. But it’s no different than Lady Gaga’s own incessant copy-catting of Grace Jones, Róisin Murphy (check out all the outfits Gaga has copped) and other fashion and pop idols. The fact is, much like fashion is cyclical, so are performance styles. I’m not defending the little punk, but for all her crimes, this is a big fat nothing. Watch the clip after the jump!