Claris is the name of more than one artist:
2) Polish Euro house
ClariS (クラリス) is a Japanese pop music idol unit from Hokkaido, Japan which formed in 2009. Formerly a female duo consisting of high school students Alice (アリス) and Clara (クララ), Alice left the unit in 2014 who then will be succeeded by Karen (カレン). They started as Nico Nico singers under the name of アリス☆クララ (Alice☆Clara), where they began singing covers of anime songs and songs originally sung by Vocaloids. These cover songs were submitted to the Nico Nico Douga video sharing website from Oct 2009~Jun 2010.
In Sep 2010, ClariS was signed to SME Records and released their debut single "irony" (Oreimo TV anime OP) in Oct 2010.
Since then, ClariS has released 7 more singles in 2011~2013, which were used as the Madoka☆Magica OP, Nisemonogatari ED, 2nd Oreimo PSP game OP, Oreimo light novel vol.9 song, Moyashimon Returns OP, Oreimo. OP, and the Madoka☆Magica Movie trilogy OP. ClariS will release their 10th single, "STEP", on 2014/04/16, which will be used as the Nisekoi 2nd OP. They released their debut album, "BIRTHDAY", in Apr 2012, and their 2nd album, "SECOND STORY", in Jun 2013. third album Party Time to be released in June 2014 will mark Alice's last contribution to ClariS.
ClariS has since graduated from junior high school in 2012. According to their official Twitter, they started high school in Apr 2012. Since they are still high school students, who want to concentrate on their studies, they will not reveal their identities. Therefore, they will be shown as illustrations.
You can find some of their Vocaloid and anime cover songs on YouTube, while more information on ClariS can be found at http://www.clarismusic.jp/. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.