Oru Kal Oru Kannadi

Oru Kal Oru Kannadi (English:A Stone, A Mirror) abbreviated as OKOK is an Tamil romantic comedy film written and directed by M. Rajesh. It stars producer Udhayanidhi Stalin, in his acting debut, Hansika Motwani and Santhanam, whilst featuring Harris Jayaraj's music and Balasubramaniem's cinematography. The film was named after a song from the film Siva Manasula Sakthi (2009). Releasing on 13 April 2012, it opened to highly positive reviews and became a blockbuster. It was eventually released in Telugu as OK OK on 31 August 2012.