They re a male seiyuu idol group with Midorikawa Hikaru, Okiayu Ryoutarou, Canna Hayashi Nobutoshi, Ishikawa Hideo, and Sakaguchi Daisuke.
Girl is one of their big singles, and on several of their albums, actually.
It s a simply beautiful ballad that makes you want to cry, it s so pretty. It s also amusing, as it s about the antithesis of the other famous male seiyuu idol group, Wei . Anyway, both the normal version and remix version are excellent. The live version, otherwise tenderly known to us as The One where Midorikawa-san Ruins the Whole Thing, is also a blast, but for different reasons. In Japanese, the word hoshi for star not only indicates stars, but planets, suns, and well anything else that might be shining in the night sky.