As with most DreamWorks animated movies, composer Hans Zimmer scored Kung Fu Panda. Zimmer visited China to absorb the culture and got to know the Chinese National Symphony as part of his preparation; in addition, Timbaland also contributed to the soundtrack. The soundtrack also includes a partially rewritten version of the classic song, "Kung Fu Fighting", performed by Cee-Lo Green and Jack Black for the end credits. Furthermore, in some versions, the ending credit was sung by Rain. Although Zimmer was originally announced as the main composer of the film, during a test screening, CEO of DreamWorks Animation SKG Jeffrey Katzenberg announced that composer John Powell would also be contributing to the score. This marked the first collaboration in eight years for the two, who had previously worked together on DreamWorks' The Road to El Dorado and the action thriller Chill Factor. A soundtrack album was released by Interscope Records on June 3, 2008. Spin-offs Manga A manga based on the film was released in Japan in Kerokero Ace magazine's September 2008 issue. It is written by Hanten Okuma and illustrated by Takafumi Adachi. Television series A television series titled Kung Fu Panda: Legends of Awesomeness aired on Nickelodeon with its premiere on September 19, 2011. From the cast of Kung Fu Panda, only Lucy Liu and James Hong reprised their roles, of Master Viper and Mr. Ping respectively. In the series, Po continues to defend the Valley of Peace from all kinds of villains, while making mistakes, learning about the history of kung-fu, and meeting other kung-fu masters. In the United States, the series ended its run on June 29, 2016, with a total of three seasons and 80 episodes. However, prior to premiering in the U.S., the final few episodes first premiered in Germany from December 30, 2014, to January 7, 2015. Kung Fu Panda: The Paws of Destiny is an animated web-television series produced by DreamWorks Animation released for Amazon Prime on November 16, 2018. It is the second TV series in the Kung Fu Panda franchise following Kung Fu Panda: Legends of Awesomeness. Developer Mitch Watson has confirmed that Mick Wingert will reprise his role from Legends of Awesomeness as Po. A third series, also set after Kung Fu Panda 3, titled Kung Fu Panda: The Dragon Knight, premiered on Netflix in July 2022, with Jack Black reprising his role as Po. Holiday special The television