Those vocals
That falsetto
The choreo (3:20)
The suit
The lights
The rap
The band playing all the right instruments and notes at the most perfect times
The fact that he kept the performance similar to one of his most iconic live performances ever, the MSG rendition of 'My Love', but changed it enough for it to still slay
Not the king slaying at 32 and dancing like he's still in N-Sync