Jayaprada have limited famous song so I guess some contestants they would have given other songs.
Sony's Super Dancer Chapter 3 had Jaya with Jeetendra and it had a lot of songs. I have also seen Jaya (as guest) shows with songs only from her films. So I don't buy that line, especially as Sony has no problems making contestants sing vague unknown songs when it suits them.
Anyway, I just wanted to know the Jaya connection. Many contestants have sang out of syllabus songs in this chapter of Idol (unlike previous years), so it is old hat. I just wish they dole out the same favour to all contestants and let them sing what they do best without reference to the guest/theme. At this time it feels that some are workhorses for the show while others are protected.