I think Macca used to appear solo decades ago to sing Blackbird,Yesterday etc.with an upside-down Texan.The UK comic/singer Richard Digance also appeared with one,or something similar.
I noticed because I have the smaller version,The Cortez,purchased approx 1965-couldn't afford a Gibbo&thought I was getting second best.Quite wrong-although made by Gibson they sound different(all other things being equal)-twangier IMHO,lovely instrument.Cheers.