Listen to Hum Paagal Hain Deewane Hain online. Hum Paagal Hain Deewane Hain is a Hindi language song and is sung by Raju Khan and Sharif Parvaz. Hum Paagal Hain Deewane Hain, from the album Badi Smart Hai, was released in the year 2003. The duration of the song is 10:39. Download Hindi songs online from JioSaavn.