Personally I am a huge fan of A.R.Rahman. It was because of him that my interest in music deepened. So, most of my favorite Hindi Songs are Rahman's compositions. Similarly, I am attached to the golden era of music because my father. He used to listen to radio, so subsequently I too developed a feeling for yesteryear's melodies. My peers find it strange when they see me knowing minute details of any old classic Hindi Song. Sometimes they call me Anu Kapoor :)
I can list some of the songs which I play almost daily.
Jiya Jale - Dil Se
Yeh Jo Des hai Tera - Swades
Tere Bina - Guru
Chanda Re - Sapnay
Patakha Guddi (Female Version) - Highway
Yeh Jo zindagi hai - 1947 Earth
Khalbali - Rang de Basanti
O Palan Hare - Lagaan
Kun Faya Kun - Rockstar
Yeh Haseen Vadiyaan - Roja
If we're talking about just one song then here it is -
Nescafe basement - Tere Jeya Hor disda
Jugni - Arif Lohar , Meesha Saifi
Desireless - Voyage Voyage is the best song! Just listen and go with the flow!
Luciano Pavarotti - Ave Maria
It's a Bollywood song
Ajeeb Dastan Hai Yeh by Lata Mangeshkar , from the movie Dil Ap a aur Preet Parai (1960).
Ritchie Valens - La Bamba
There are sooo many!!!
In Hindi there are so so so many that are so beautiful touching.. how can one have only one!!!
I'll go with the oldie number - Jeena isi ka naam hai..
and there's one sound track of Crouching Tiger movie.. song by Coco Lee.. A Love Before Time..
Though i could understand only when i heard the english version but it's originally in Mandrin (chinese)
Loved it too...