Quote Originally Posted by Glenpwood View Post
Spoiler alert: Frankie Valli has been doing it for years. There's a video showing him lip syncing the high notes on Sherry for over a decade up on YouTube. Give him a break though - he still tours heavily at 90.
My hunch is that Frankie Valli does not sing a single note live. No 90-year-old can sound like he does on stage. Impossible.