Think that JJ is really one of the most complete and accomplished musician because he not only sings, composes, adding lyrics, arranges the music but also plays keys, guitar, bass and percussion. He is adept in singing live with very little mistakes, sometimes in the bigger venue it is so difficult with so much reverb. And sometimes hard to hear your own voice in such big arena. His concerts are packed with many of his songs and last for 2 1/2 hours, physical draining but he carries it so well. And to think he hurt his vocals some years back and had to recuperate for almost half a year, it was incredible to see him bounce back so strongly after such a huge setback. I feel this is one of his most amazing performance.