sentences:  Tavera did not become a part of the regular "Invader Zim" crew, and was replaced with Kevin Manthei, who is also known for composing the music for "Generator Rex", "The Sims 2", and "Robot Chicken", to compose the series' music.Manthei's music for the series is industrial and techno in nature.The anime internet radio station, ""Anime Stuff R"" did a radio broadcast special called, ""The Kevin Manthei Invader Zim-phony Special"" which featured a majority of the music Kevin Manthei composed for "Invader Zim".