Cassandra Lee Morris is an American voice actress. After starting her career as a teenage program host for an educational video series called Real World Science, she worked as a journalist in New York City and Los Angeles writing for local newspapers and programs as well as numerous fashion and style blogs such as About.com, David's Bridal and Patch.com. She got into voice-over starting with Alice and then Yubel in Yu-Gi-Oh! GX and has since worked on a number of animation, anime shows and audiobooks.

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.