Slash (Guns N’ Roses), Don Felder (ex-Eagles), Billy Gibbons (ZZ Top), Richie Faulkner (Judas Priest), Lzzy Hale (Halestorm), and more took part in a jam session at the “Gibson Live At The Grove” event in Anaheim, CA on January 16. You can see some footage of that below, courtesy of The Music Zoo and VintageRock.com:…