आदत हो चुकी Aadat Ho Chuki Song Lyrics- Koi Aap Sa Posted inBollywood आदत हो चुकी Aadat Ho Chuki Song Lyrics In Hindi From Koi Aap Sa Movie sung by Shaan, Sunidhi Chauhan. The Song is written by Sameer and composed by Himesh Reshammiya Music company T-Series.