Listen to Yeh Kahan Aa Gaye Hum - Dekha Ek online. Yeh Kahan Aa Gaye Hum - Dekha Ek is a Hindi language song and is sung by Amitabh Bachchan, Lata Mangeshkar and Kishore Kumar. Yeh Kahan Aa Gaye Hum - Dekha Ek, from the album Ooh Baby Ab, was released in the year 1991. The duration of the song is 6:02. Download Hindi songs online from JioSaavn.