The August 8, 2010 broadcast of Music Japan was the second half of the Shinseiki Anison SP3. The first half was aired on August 1, 2010.

The seiyuu that appeared (performed on stage or video clips shown) were as follows.

• Mizuki Nana and Tamura Yukari
  Nana and Yukari performed together and sang "Innocent Starter" and "Lttle Wish -lyrical step-"
• Makino Yui
  They showed some clips of Yui's appearance on an Internet TV program.
  Yui sang "Yuuforia"
  
• Tamura Yukari
  They showed some video clips of Yukari's fan club event at Yomiuri Land.
  Yukari sang "Oshiete A to Z"
  
• Mizuki Nana
  Nana sang "Don't Be Long"
  

In addition to the seiyuu, Takahashi Youko sang "Tamashii no Refran".