Kochadaiiyaan (English: The king with long, curly mane) is the soundtrack album composed by A. R. Rahman to the 3D motion capture computer-animated Tamil film of the same name directed by Soundarya R. Ashwin. The original version as well as the dubbed Telugu version of the soundtrack (titled Vikramasimha) was released on 9 March 2014. The Hindi version was released online on Eros Now on March 13, 2014. Upon its release, the soundtrack became the first Tamil film music album to trend on Twitter and top the iTunes India charts.

Initially, A. R. Rahman dithered to compose the soundtrack album as he was well aware of the time taken for the completion of performance capture films.Later, he agreed to compose after being convinced by the director that the filming would be done in a year.On completion of the score, in an interview with Deccan Chronicle he quoted, "Working for a performance capture film was a little difficult and composing the background scores and songs for it was a tedious process. We brought in about 150 orchestras and made every song unique."

Reported as "Ethirgal Illai" in 2012, the "sayings" in the philosophical theme song called "Maattram Ondrudhaan Maaraadhadhu" (translates to 'Change is only constant') were recited by RajinikanthAs per the director of the film, lyricist Vairamuthu and actor Rajinikanth worked on the songs lyrics for a week to avoid encountering any controversial lines. Further, as per latter's advice, couple of lines on women from the originally written lyrics were removed. This is the second time, that the actor took part in playback singing for a film after the song "Adikuthu Kuliru" in the (1992) film Mannan. Rajinikanth recited the sayings in the Hindi,the song sung by Javed Ali, for the Hindi version of the soundtrack. The lyrics were written by Irshad Kamil in Hindi and Urdu; entirely different from its Tamil counterpart.The track was recorded at AIR Studios, London on 31 March 2012. In August 2012, Sony Music Entertainment acquired the music rights of the film. In June 2013, Hollywood music engineer Geoff Foster was involved in mixing 200 tracks of orchestra for the soundtrack.

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