Just watched 'Hai Rama song' by Hema. Adesh cleverly selected a south singer's voice to Hema not to take any chances in the final stages! Hema did sing it superbly. Even Vinit sang the Sonu song "Sandeshe Aate hai" superbly...cleverly selected by HR. Debu too sang well...but lost some sur somewhere...I say not clever decision by ID to give him a Illayaraja song!!
It's not wrong that they inspire or sound similar like some established singers...but what counts is that how well they can sing even if their voice resembles other singers.
Now that the show having lot of unwanted acts/dramabazi/boring comments etc...its just that we listen to the singers....enjoy the song...!
Thats why there is TV...to enjoy your favorite programs!