Karthik, carnatically trained, presents traditional songs in a Fusion format, although it still has a semi-classical feel. Purists might write him off but his voice, his controlled execution is very very pleasing, appeals to wider audiences than classical carnatic does. The flautist is exceptional too.
Asai mugam :
https://www.youtube.com/watch?v=oSnGtyaLh0E
yenna thavam :
https://www.youtube.com/watch?v=Y9ydiVaPQ14
And, if you're still on this page, this non-classical - outstanding - usUre pOgudhE can't be missed.
https://www.youtube.com/watch?v=91Mjs9R7vvc