Utauyo! Miracle PCCG-70077 (first press) released 2010.08.04 1260 yen PCCG-70078 (regular press)

This CD contains the second opening song to the TV anime K-On!! (けいおん!!).

The tracks are as follows.

1. Utauyo! Miracle
2. Kira Kira Days (キラキラ Days)
3. Utauyo! Miracle (Instrumental)
4. Kira Kira Days (Instrumental)

Songs by Houkago Tea Time, voiced by Toyosaki Aki (豊崎愛生), Hikasa Youko (日笠陽子), Satou Satomi (佐藤聡美), Kotobuki Minako (寿美菜子), Taketatsu Ayana (竹達彩奈). Main vocals by Toyosaki Aki. The first press of this CD package contains individual CD jackets of the girls.

This CD single placed very highly in the Oricon Daily Singles Rankings. It debuted at number 3.

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