Glaring Dream is the only ending theme for the 12 episodes-long anime series Gravitation, based on the popular manga by Murakami Maki published by Sony Magazines. It's sung by Bad Luck (the fictional band from the series), with the famous singer and seiyuu Tomokazu Seki in vocals. You can find the lyrics here @ Anime Lyrics.
Series-wise, Gravitation is a comical but deep shounen-ai story, focused on Shindou Shuichi, a singer trying to succeed with his band, Bad Luck. One day, he meets a famous writer called Uesugi Yuki Eiri, who treats him quite badly in fact (especially, because of Shuichi's lyrics being bad)... but Shuichi falls for him, starting a very interesting, deep, and above all, beautiful relationship, in which both will learn a lot. But the story isn't only about them, as the other members of Bad Luck, other bands, and ghosts from Yuki's past contribute to create a very nice and memorable plot. A interesting fact is that, Murakami-sensei, unable to show explicit scenes because of the magazine's target, published doujinshis of the series with explicit Yaoi content, called Remixes.