24 is the soundtrack album, composed by A. R. Rahman with song lyrics by Vairamuthu and Madhan Karky, to the 2016 Tamil film of the same name, produced by Suriya and directed by Vikram Kumar. The film stars Suriya, Samantha Ruth Prabhu and Nithya Menen in lead roles. The album features six tracks, and was released on April 11, 2016 by Eros Music.

In November 2014, A. R. Rahman was announced as the film soundtrack and score composer. Rahman had a six-hour script narration session with Suriya and Vikram Kumar before signing the project. Recording of the track "Punnagaye" written by lyricist Vairamuthu was completed by February 2015. In an interview with The Hindu, Suriya told that recording of one more track was completed by September 2015. According to lyricist Madhan Karky, for the track "Naan Un": Rahman was trying out a tune on his piano and Karky was writing the lyrics while listening to him. He wrote a line in Tamil, "Undhan Azhagil Iraivanai Kaankiraen" that translates to, "In Your Beauty, I See God." An inspiration before composing tunes, Rahman had read the same line from the Prophetic books before composing that track. However, the track was initially composed for some other film. Later, it was reworked to suit the film soundtrack. An additional composition written by Madhan Karky titled, "Dangerskku Hi5 Podu, Daredevilkku Vaanam Podu." was as an intro song only in the film score. However, the track was released as a bonus single under the title "24 Carat" on May 17, 2016.

The original and Telugu versions of the album were released at separate events held at Sathyam Cinemas in Chennai and Shilpkala Vedika in Hyderabad respectively on April 11, 2016. At the launch of original version of the album, there were live performances of songs from the film. Singer Benny Dayal sang the track "Kaalam En Kadhali", followed by Chinmayi singing "Naan Un". Shakthisree Gopalan was next with the track "Aararoo" and the Telugu version "Laalijo" was sung by actress Nithya Menen with A. R. Rahman playing the keyboard.

...
Wikipedia