“Okay, so you’re Brad Pitt / That don’t impress me much,” Shania Twain speak-sang in “That Don’t Impress Me Much,” her 1998 ode to vainglorious dudes. And for the next 19 years, we wondered: Why Brad Pitt? Look at Brad Pitt in 1998. He was People Magazine’s Sexiest Man Alive in 1995. He was about to start dating Jennifer Aniston. No…
