Heisenberg is the pseudonym of an anonymous lyricist who works in Indian films. He writes primarily in English and is known for his collaborations with Anirudh Ravichander and Lokesh Kanagaraj, who have declined to reveal his identity.
Overview The pseudonym "Heisenberg" was derived from the Breaking Bad character Walter White's criminal alias. The lyricist made his film debut with Vikram (2022) and returned with Leo (2023), with both films directed by Lokesh Kanagaraj and having music composed by Anirudh Ravichander. He has also written for Vettaiyan and Devara: Part 1 (both 2024), also having music by Anirudh.
Interest in uncovering Heisenberg's true identity began among fans soon after the release of the music video of "Wasted" from Vikram, and only amplified after the release of "Bloody Sweet" from Leo. Lokesh has asserted that Heisenberg is not himself, Anirudh or artificial intelligence but a separate person, and the clue to his identity is in the 1980 Tamil film Varumayin Niram Sivappu. Anirudh said it was not initially planned to keep Heisenberg's identity a long-term secret, but social media users started showing curiosity after the success of Vikram soundtrack, and even many fake accounts claimed to be the lyricist, after which he and Lokesh decided to play along. While promoting Coolie (2025), he stated that Heisenberg's true identity "will be a secret that Lokesh and I will take to the grave".
Some fans have speculated that either Kamal Haasan or S. Ve. Shekher might be Heisenberg because they acted in Varumayin Niram Sivappu, or Nelson Dilipkumar because the film features a character using the alias Dilip. Nelson has denied being Heisenberg but believes it is Lokesh.
Discography + Year Film SongsNotes 2022 Vikram "Wasted", "Once Upon A Time" 2023 Leo "Bloody Sweet", "Ordinary Person", "I'm Scared", "Leo Das Entry" "Ordinary Person" is part of the extended soundtrack Jawan "Maasi Theme", "Vikram Rathore" (English) Background score tracks 2024 Vettaiyan "Hands Up" Devara: Part 1 "All Hail the Tiger", "Red Sea"Non-album singles 2025Coolie"I Am The Danger", "Mobsta""Mobsta" was co-written by Arivu 2026 Love Insurance Kompany "Adaavadi" Co-written by Rokesh and Vignesh Shivan DC "Ain't Nobody", "Namaste", "Hangova", "Vizhigale", "Don't Give a Damn", "Bum Baa Diga Diga", "Jaya Jaya Shankara" "Bum Baa Diga Diga" was co-written by Vedan The Paradise"Welcome to the Paradise" Jailer 2"One Name", "One Sun One Moon" "One Sun One Moon" was co-written by Super Subu King "They Call Him King"
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