Listen to Kuch To Hua Hai (From "Kal Ho Naa Ho") online. Kuch To Hua Hai (From "Kal Ho Naa Ho") is a Hindi language song and is sung by Shankar-Ehsaan-Loy, Alka Yagnik and Shaan. Kuch To Hua Hai (From "Kal Ho Naa Ho"), from the album Perfect 10: Love Story, was released in the year 2012. The duration of the song is 5:22. Download Hindi songs online from JioSaavn.