LANSING, Mich (WLMI)  Day-4 of the Common Ground Music Festival in Lansing features country superstar Eric Church on the Main Stage.  Church has scored 19 Top Ten singles and two gold albums over a career that has spanned just 6 years.  Also appearing tonight---Lukas Nelson & Promise of the Real; Gunnar & The Grizzly Boys; Delta Rae; DJ Ruckus; John Beltran; and, Brett James & The Contraband.  Go to commongroundfest.com for ticket information.