Ultra-Prism

Is a band that perfomed some anime themes.

The opening theme of Shinryaku! Ika Musume is "Let's Invade!" (侵略ノススメ☆ Shinryaku no Susume☆?) by ULTRA-PRISM with Hisako Kanemoto.

Two songs are used for the opening and ending themes of the anime, "Softenni" (るーるぶっくを忘れちゃえ?) by Ultra-Prism with Shiratama-chū Soft Tennis Club, and "Tsumasakidachi" (つまさきだち?) by Kanae Itō respectively.

The ending theme of Rio: Rainbow Gate!is "Miracle☆Chance" (みらくる☆ちゃんす Mirakuru Chansu?) by ULTRA-PRISM. CD singles of the songs were released on January 26, 2011 by Universal Music.

(Source: Wikipedia)