i read that this week helen to grace dance india dance.and also read that
Now preparing for 3 solos in a week's time is definately tough so contestants are free to performs on the songs and style they used in audition. Not only D but others are doing so also. This is abvious that this weeks performances is most crucial for winning. All the contestants would be doing the styles that they are most tarined on. Who doesn't want to leave a last winning impression on the minds of viewers.
Next week friday will be a recap show on all the finalists and saturday is the finale. This is the last chance for all 4 of them to give their best so its make sense to pick their signature style and dance.