Xanthe Huynh is an American voice actress known for her voicework in English dubs of anime series. Her most well known roles include Haru Okumura in Persona 5, Ui Hirasawa in K-On!, Altina Orion in The Legend of Heroes: Trails of Cold Steel II, Alluka Zoldyck in Hunter × Hunter, Yuna in Yuki Yuna is a Hero, Hanayo Koizumi in Love Live!,, Marianne in Fire Emblem: Three Houses, Meiko "Menma" Honma in Anohana: The Flower We Saw That Day, and Sachi in Sword Art Online.

K-On! is a Japanese four-panel manga series written and illustrated by Kakifly. It was serialized in Houbunsha's Manga Time Kirara magazine between the May 2007 and October 2010 issues, and also serialized in Houbunsha's Manga Time Kirara Carat magazine. The manga relaunched from April 2011 to June 2012 with two separate storylines published in Manga Time Kirara and Manga Time Kirara Carat. The manga is licensed in North America by Yen Press. A spin-off manga about a different band of high school girls, K-On! Shuffle, began serialization in July 2018. The main series focuses on four young 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.