"Blue Planet" (ブループラネット, Burũ Puranetto) is a single by Alice Nine, and their first digital download.

The new recording is featured in the album Alpha, as well as the music video.

The music video for Blue Planet was released on November 1, 2007 on Yahoo.jp.

[2] The music video features Alice Nine members acting natural in a planetarium-like blue room, a young girl adorned with devil horns who watches over the world, and a tightly-dressed woman with pink headgear in the shape of a bunny.

Various scenes include singer Shou playing chess with the bunny-eared woman and the band members sitting together thoughtfully.