Taken from The GRAMMYs official Twitter page. I'd like to know the font used for "Witness Greatness"

What we see here seems to be a lookalike of a mix of the Lemon/Milk (here on dafont) and the Bifur (Harold Lohner). Not a match, merely a combination of shape and idea. The Bifur, by the way, is a rendering of a Pepin Press typeface.