"Jai Ho" means "May Victory be Yours (& ours)".

"Jai Ho" is an academy award winning Hindi song composed by A. R. Rahman for the end credits of the film Slumdog Millionaire (2008)

Wikipedia: http://en.wikipedia.org/wiki/Jai_Ho

Youtube Song:  http://www.youtube.com/watch?v=PjN_q8feoa4

Pussycat Dolls Song: http://www.youtube.com/watch?v=UFpZ2mlR04I

Amazon Download: http://www.amazon.com/Jai-Ho/dp/B001NB5BVI