I saw her on her first (semi-final), second (close to final) or third (currently final) Farewell Tour, but everytime she looked as good as new.
https://www.youtube.com/watch?v=dcT9klwGSicCher was so hot, she even gave battleships (multiple) boners, so there!
https://www.youtube.com/watch?v=Grdev5ktOGw(Ken, the likely product of the Gregg & Cher gig you saw can be viewed at around 2:35: Mom gives her honey Elijah Blue a barely beclothed butt bump.)
I know that people find her voice divisive, but I think she did well as an actress, too bad she stopped making films, I think she had great one-liners on screen (like when her screen daughter Wynona R. went all devout Catholic in adolescent passion in
Mermaids and Cher looks at her sideways and quips: "You do know we're really Jews, right?"). Or in real life, her introduction here alone is priceless:
https://www.youtube.com/watch?v=9FInvHRUILQ