This year’s When We Were Young Festival has now been expanded to two days. The event will now take place at the Las Vegas Festival Grounds in Las Vegas, NV on October 21-22 and it will feature: Green Day, Blink-182, 30 Seconds To Mars, The Offspring, Good Charlotte, Rise Against, Yellowcard, Sum 41, Simple Plan, New Found Glory, 5 Seconds Of Summer, All Time Low, Pierce The Veil, Thrice, Something Corporate, Gym Class Heroes, Motion City Soundtrack, Say Anything, Michelle Branch, Saves The Day, MxPx, The Academy Is…, Bowling For Soup, Less Than Jake, Finch, Movements, Waterparks, Relient K, Goldfinger, Beach Bunny, Joyce Manor, AJJ, The Ataris, Plain White T’s, The Front Bottoms, The Wrecks, Citizen, The Veronicas, Zebrahead, Set It Off, No Pressure, Tiger’s Jaw, Hot Mulligan, Lit, Ekkstacy, Knuckle Puck, Kenny Hoopla, Fenix TX, Games We Play, Magnolia Park, and Jean Dawson.