Description: Ok Jaanu (Title Song) (OK Jaanu) is sung by A R Rahman, Srinidhi Venkatesh and music is directed by A.R. Rahman. Download Ok Jaanu (Title Song) (OK Jaanu) mp3song, download Ok Jaanu (Title Song) (OK Jaanu) mp3 song in 128 kbps and 320 kbps and itune rip also.