I find it "funny" realizing that the "geezer rock" of my younger days often was being performed by people of an age I certainly don't think of as being quite geezers now!
Very roughly the peak popularity of the performers from last night was 20+ years ago (give or take a few years). Similar to having Elton John perform in 1997, when he was 49.
Snoop Dogg is 50, yo. (Artists have longevity beyond their peak popularity, and my point is not to disparage any of them).