There's those 2 big festivals coming up in July, NYC and Los Angeles, "Classic West" and "Classic East," starring The Eagles and Fleetwood Mac, The Doobies, Journey, Steely Dan...there's been much speculation about who, if anyone, would stand in for the late Glenn Frey...Pollstar Magazine thinks it'll be Country star Vince Gill... Getty Images Vince Gill To Replace Glenn Frey?