Have you ever danced on the roof of a moving train?

छाया (f)  chāyā -  shadow

Chaiyya Chaiyya (English Subtitles) - Dil Se... HD
Here's a scary video...Shah Rukh Khan and Malaika Arora dancing on the roof of a moving train.  I can't watch it without a feeling of dread that someone's going to fall and get injured. It's not even a flat roof and they're jumping there. Shah Rukh Khan's career could have been tragically cut short.

बिल्कुल  पागल  

(bilkul paagal)

If there had been villains on that train they  probably wouldn't have seen the tunnel coming.

Anyway, here are the lyrics (it repeats quite a bit):

Jinke sar ho ishq ki chaaon
Paaon ke neeche jaanat hogi
Chal chaiyya chaiyya chaiyya chaiyya
Saare ishq ki chhaaon chal chaiyya chaiyya
Pau janat chale chal chaiyya chaiyya
Voh yaar hai jo khushboo ki tarah
Voh jiski zubaan urdu ki tarah
Meri shaam raat, meri kaayanat
Voh yaar mera sainya sainya
Gulposh kabhi itraaye kahin
Mehke to nazar aa jaye kahin
Taaveez banaake pehnoon usay
Aayat ki tarah mil jaaye kahin
Voh yaar hai jo imaan ki tarah
Mera nagma vohi mera qalma vohi
Mera nagma nagma mera qalma qalma
Yaar misaale ous dhale
Paaon ke tale firdous chale
Kabhi daal daal kabhi paat paat
Main hava pe dhoondhoon uske nishaan

Main uske roop ka shehdaai
Vo dhoop chhanv se harjaai
Vo shokh hai rang badalta hai
Main rangroop ka saudaai
Jinke sar ko ishq ki chhaaon
Paaon ke neeche jannat hogi
Shaam raat meri kaaynaat
Vo yaar mera sainya sainya
Voh yaar hai jo khushboo ki tarah
Voh jiski zubaan urdu ki tarah
Meri shaam raat, meri kaayanat
Voh yaar mera saiyya saiyya