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is a composer, songwriter,

music producer and


based in LA.

Kate Diaz headshot

She is the composer/lyricist and orchestrator/arranger of the new musical REDWOOD that will open on Broadway in early 2025, starring Idina Menzel.  Director/playwright/lyricist Tina Landau and Menzel scouted Kate online when searching for a composer outside of the musical theater genre.  Menzel describes Kate’s score as “epic and cinematic as well as intimate well-crafted songwriting” with “beautiful melodies and also music that really feels like a film score.”

Kate composes scores and songs for film, TV, theater, video games and other media.  (See list of credits here

She writes, orchestrates, arranges and produces for herself and others, and she is also a session vocalist and guitarist. 

Originally from the Chicago area, Kate got her start as a performing songwriter from a young age.  She has released five albums of original pop/rock songs and played hundreds of shows and festivals.  Kate graduated from Harvard University magna cum laude, as a history/political science major.  She also graduated summa cum laude from Berklee College of Music, as a Contemporary Writing & Production major and guitar principal.


selected scores

selected songs

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