Mr know it all --凯莉克拉森 you and i --lady gagahair ---lady gaga halo ---beyoncecheers--rihanna criminal--布兰妮 .Firefly ---A Teens.Numb/Encore (Amended Version) Devil Wouldn't Recognize You we found love --rihannawish you were here --艾薇儿rolling in the deepsomeone like you papi---珍妮弗洛佩斯e.t--ketty perry f...