ClariS is a Japanese pop music female duo consisting of junior high school students Clara and Alice. Originally known as "Alice Clara", ClariS began singing covers of mainly songs featured in anime and songs originally sung by Vocaloids, and submitting them to the Nico Nico Douga video sharing website between October 2009 and June 2010. In September 2010, ClariS was signed to SME Records and released their debut single "Irony" in October 2010, which was used as the opening theme to the anime Ore no Imouto ga Konna ni Kawaii Wake ga Nai. ClariS released their second single "Connect" in February 2011, which was used as the opening theme to the anime Puella Magi Madoka Magica.

ClariS consists of two high school girls from Hokkaido known as Clara and Alice (both pseudonyms, done so to preserve their anonymity). ClariS is a portmanteau of the singers' names and was picked as an homage to the character Clarisse from the anime film The Castle of Cagliostro. As listed on their website, "ClariS" can also carry the meaning of "clear" and "bright" in Latin (though it is actually spelled "clarus"). Both Clara and Alice have been singing since they were in kindergarten, when they started taking lessons at the same music school where they met as classmates. Clara can play the piano.

In order to put a priority on their schoolwork, ClariS have not released photos of themselves to the public and employ illustrators to draw their likenesses. When drawn, Clara is depicted wearing pink items, and Alice is shown wearing blue items. Images of the crescent moon are used as a motif to represent Clara, and the sun is used to represent Alice, which comes from their personal preferences. Clara is shown with slightly wavy hair and no bangs, while Alice is drawn with straight hair with bangs. To further preserve their anonymity, Clara and Alice have not told anyone they know (aside from their families) that they debuted as music artists.Both admit that they are otaku, and have taken an interest in anime and anime music. Clara says that she keeps her otaku interests a secret from others at school, and Alice has called herself a Disney otaku.

Singles
2010
1."Drop / Kimi no Yume o Miyō"
2."Irony"
2011
3."Connect"
4."Nexus"
2012
5."Naisho no Hanashi"
6."Wake Up"
7."Luminous"
2013
8."Reunion"
9."Colorful"
2014
10. CLICK
11. STEP

Albums
1. Birthday (2012)
2. Second Story (2013)