She sings waaay better than half of our own homebred singers. Yes? Yes!!! And she's purty toooo :~)
Here's another video where Tina Yuzuki performs with other JAV stars on a variety show called Please Muscat or Onegai Muscat おねがい マスカット. It's a Japanese TV variety show which follows the standard late night TV formula, instead of mainstream celebrities and talent, it features famous JAV idols and gravure idols who sing pop songs, perform comedy skits and compete in mindless eye candy competitions against their peers.
The show’s regular cast includes some the most popular AV idols from the S1 studio including, Sora Aoi 蒼井そら, Asami Yuma 麻美ゆま, Akiho Yoshizawa 吉沢明歩, Sho Nishino 西野翔 , Rio (Tina Yuzuki), Risa Kasumi かすみりさ, Mihiro みひろ, Asami Ogawa 小川あさ美, Saki Kataoka 片岡さき, Megumi Sayama 佐山愛, Hatsune Minori 初音みの, Megu Fujiura 藤浦めぐ and Megumi Kei 恵けい.