Yattarouze! (やったろうぜ!) is the 2nd single released by Ongaku Gatas on December 5th, 2007.
Ongakau Gatas is a japanese pop girl group and the single reached #21 on the Oricon Chart. In 3 weeks, 9,042 copies were sold.
It was the last single of Ongaku Gatas featuring Muto Miki and Mano Erina.