The A-side of this 2009 single, "Namida no Mukō," was the first song by Stereopony to feature backing vocals from members of the band Shonen Knife. It reached number 29 on the Oricon charts.
- The B-side, "Over the Rainbow," was an original composition by the band members.
- "Namida no Mukō" was used as the opening theme song for the anime television series Bleach.
- The single charted at number 29 on the weekly Oricon Singles Chart.
Stereopony was a Japanese all-girl rock band formed in 2007. They disbanded in 2012 after releasing four albums and several singles.
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