A.R Rahman's song 'Balleilakka' from Sivaji, starring Rajini, takes on a new spin with these pretty awesome performances by a few different choir groups around the world.
Here's the original 'Balleilakka'
Here's the Austin High School Concert Choir's performance
Here's Augustana Choir's performance (starts at 8:30)
And finally one by Laguardia Mixed Chorus