K-On!!

The second season of K-On! animated television series is based on the manga series of the same name written and illustrated by Kakifly. The episodes, produced by the animation studio Kyoto Animation, are directed by Naoko Yamada, written by Reiko Yoshida, and features character design by Yukiko Horiguchi who based the designs on Kakifly's original concept. The story follows four Japanese high school girls who join their school's light music club to try to save it from being abolished. However, they are the only four members of the club, one of which has little experience with guitar playing.

This season, titled as K-On!! (with two exclamation marks) aired in Japan between April 7, 2010, and September 28, 2010, with 26 episodes. The episodes aired in HD format in Japan. An OVA episode was included with the ninth BD/DVD volume of the second season released on March 16, 2011. An English dubbed version of this season began airing on Animax Asia starting October 20, 2010. The second season was licensed by Sentai Filmworks and released in two BD/DVD collections in North America between June and August 2012. An animated film based on the series was released in Japanese theaters on December 3, 2011, and was later released on BD and DVD on July 18, 2012. Sentai Filmworks released the film in North America on May 21, 2013.

Four pieces of theme music are used for the second season; two opening themes and two ending themes. For the first 13 episodes, the opening theme is "Go! Go! Maniac" and the ending theme is "Listen!!". For episodes 14 onwards, the opening theme is "Utauyo!! Miracle" while the ending theme is "No, Thank You!". The songs from the second season are performed by Ho-kago Tea Time (Yui Hirasawa (Aki Toyosaki) with Mio Akiyama (Yōko Hikasa), Ritsu Tainaka (Satomi Satō), Tsumuki Kotobuki (Minako Kotobuki) and Azusa Nanako (Ayana Taketatsu)) on the opening and ending themes, respectively. For the movie, the opening theme is "Ichiban Ippai" (いちばんいっぱい), the main theme is "Unmei♪wa♪Endless!" and the ending theme is "Singing!", all performed by Ho-kago Tea Time (Hirasawa (Toyosaki), Akiyama (Hikasa), Tainaka (Satō), Kotobuki (Kotobuki), and Nanako (Taketatsu)).