Ainvayi Ainvayi

I don't really catch much of the words of the song, even with the subtitles but maybe it can be my learning goal some day. I think this is a brilliant song, can't help but feel like dancing. It's from the movie Band Baaja Baaraat which I liked because it was so colorful and  visual. The plot could have been better but stick a song like this in your movie and I'm going to like it  just for the music ;)
Apparently the movie title means Bands Horns and Revelry.

The video with English subs and movie imagery:
http://www.youtube.com/watch?v=ClEwkCp-fTM

Video with Hindi lyrics:
http://www.youtube.com/watch?v=trJavdUSnPY&feature=plcp 

Another version
http://www.youtube.com/watch?v=ZevWQCPbi5Q&feature=plcp

http://www.bollymeaning.com/2010/11/ainvayi-ainvayi-meaning.html
A link discussing the translation. Apparently Ainvayi is a Punjabi word that means "just like that, without any reason". Lut gaya = lost