Listen to Khushi Khushi Wohi Hum online. Khushi Khushi Wohi Hum is a Hindi language song and is sung by Mehendi Raza and Arun. Khushi Khushi Wohi Hum, from the album The Return Of Toofan Mail, was released in the year 1942. The duration of the song is 3:17. Download Hindi songs online from JioSaavn.