dont you all agree ? he sings all songs almost perfectly. surely there's an 'aging' thing on his tone which sort of became his trademark for the past 5, 6 years. but it's no longer only a matter of how well he reaches the high notes or weather he can or can't growl like back in the 80s.
he's sustaining the notes amazingly and is, indeed, reaching certain high notes he struggled with over the past tours. Thumbs up JBJ !