It's quite important for the participants to choose ( or get assigned to - I'm not sure how the system actually works) the right kind of songs that surface their strengths without being too remote or difficult for the audience to get connected to in a 2 minute rendition. If you had the say (forget themes for now), which songs would you like your favorite partcipants to sing? I'll start with a short list for mine.
Aamir:
1. Main Jahan Rahoon
2. Tu Meri Jaan Hai - Kailash Kher
3. O Re Piya - RFAK
4. Ankhiyaan Nu Chain Na Aave
5. Naina Thag Lenge