i expected something better than what we have for "Roar", though love the part where she "ROAR-OAR-OAR". it's basically a combination of a leftover from Teenage Dream which lacks punch as a whole, and a leftover Ke$ha pop anthem with lyrics by Katy Perry.
however, i like "Applause" a lot. sure, it's not an instant hit ie "Bad Romance", at least i like the direction she's taking here far more compared to the mess that is BTW. it's an interesting sound too.