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 Cafe Classics, Vol. 2 (Love Duets), was released in the year 2018. The duration of the song is 5:22. Download Hindi songs online from JioSaavn.