russian roulette
rihanna rehab
rihanna cry
rihanna 非常欣赏她的嗓音,辨识度很高,她有很多歌都不错apologize
onerepublic这首歌Timbaland版本的红得都发紫了,但个人觉得没经过混音的原版更能带给我触动gennie in a bottle
christina aguilerainfatuation
christina aguilera也是实力派啊,那唱功..from sarah with love
sarah connor 德国蓝