I Hate Kate is an alternative rock band from Huntington Beach, California. The band was founded in November, 2004 by former Zebrahead guitarist and vocalist Justin Mauriello, to explore his musical options. History Justin Mauriello started I Hate Kate in 2004, while still in Zebrahead, as a creative outlet for material that he wasn't able to display in Zebrahead. Playing with other musicians is like being in a relationship and being able to have sex with other people. It's brilliant ... and in music ... it's a-ok. Anywho ... I was playing with the Kates, one thing lead to another and after sometime, this band became my full time love. The name I Hate Kate came to be through a friend of the band The Grease. The Greasafile had a girlfriend named Kate who was the devil. She was Satan. An absolute bitch and a ho. One day Justin said.."Man I hate Kate" ... next thing you know ...