People get over yourselves. Ke$ha and Rihanna are NOT the same. I like them both. Rihanna is R&B (sorta) and Ke$ha is POP. And the song doenst sound anything like Only Girl.

We R Who We R is muuuuuuuuuuuuuuuuuuuuuuuuuuuch BETTER!
But Rihanna is cool 2.

Peace