The cover is released in 2011 thus it's a 2011 song for me plus they changed the lyrical meaning compared to the Monrose song which is interesting. Roly Poly is my top song of 2011 and probably what I consider the greatest kpop song of all time.
than roly poly in cococabana should be our 2nd favourite song of 2011 . what makes hot summer your 3rd favorite song of 2011. 