Tu Raja Ki Raj Dulari from Oye Lucky! Lucky Oye!
This is the kind of track I don't think I have ever before come across in Bollywood. It's basically a Haryanvi folk song, but the instruments used are as varied as you can get. They range from ones with traditional Indian effects, to completely Western ones. The combined effect they achieve is extraordinary. And the guy who has sung this has also done a commendable job.
The song has this general theme surrounding Parvati, a princess, wanting to marry Shiva, a monk. In this song, he's telling her about his notably few material possessions and his lifestyle, which she would hardly be able to adjust to, since it dramatically contrasts hers.
It's actually a pretty serious song, but somehow sounds a little comical. There is something about Haryanvi songs that makes them sound like that. There was this classmate of mine who used to sing a particular Haryanvi song at every occasion that presented itself during the three years of our MCA. He'd start by telling us that he was about to present a serious, romantic song from Haryana and that we were not supposed to laugh. We'd generally burst out laughing at this prelude.
This song is nothing like anything I've heard before. Worth a listen. And now I'm curious about where it's been placed in the movie. I feel like watching the movie just to find that out.