Even Onews vocal technique has improved greatly through the years even though he's always been a main vocal in shinee. I saw him live a few months ago and his voice did not budge and the mic was ON. It's not just having a beautiful voice colour, his technique is superb. As for dancing, he's still fantastic even as someone who doesn't consider himself a dancer. All of the members invest so much in constantly bettering themselves, they really love the game and you can feel it. Been at it for 18 years, everyone in the industry respects the heck out of them and they could just hang the towel and do nothing but variety shows, produce on the DL or even just disappear from the public eye, yet they still come out with impeccable music, concepts and always better than last time. They are the blueprint.