it's barely noticeable, but do you hear when phil does the call and response with the horns in the fade out? this is 1980/81, before autotune, but phil doesn't need it, because he has absolutely perfect pitch. and, he completely nails it, beyond the slightest microtune. it's inhuman.
it's a triviality. sure. almost anybody could do this, in truth, but the ease and perfection in which he does it is a clear demonstration of why musicians of successive generations just won't let phil go. he was a truly singular talent, whether the douchebag losers of the era, who were mostly talentless wretches, realized it or not.