The new version of her current single begins with a spot of 'swara', which The Times of India has handily transcribed as "ni ni sa sa ga ga ma ma/ ma ga ni ni sa pa ni sa ni pa".
While it is unclear how much of a 'collaborative' process the remix was, Britney does seem to be aware of who Sonu is. Earlier today she tweeted that she loves the "different feel" that his vocals give to the song.