The lineup has been revealed for this year’s Shaky Knees Festival. That event will take place at Piedmont Park in Atlanta, GA on September 19-21 and it will feature “Weird Al” Yankovic as a special guest. Here’s the daily lineups: September 19: Deftones, Lenny Kravtiz, Sublime, The Marias, Pixies, IDLES, Spoon, Inhaler, Joey Valence &…