Nantinya Festival ini akan di adakan pada Las Vegas Festival Grounds, Sahara Avenue, Las Vegas, Nevada, Amerika Serikat.
Berikut ini line up musisi yang akan mengisi Festival When We Were Young:
My Chemical Romance, Paramore, AFI, the used, Bring Me The Horizon, Taking Back Sunday, Dashboard Confessional, Alkaline Trio, Manchester Ochestra, A Day To Remember, Pierce The Veil, Boys Like Girls, Sleeping With SIrens, Avril Lavigne, Mayday Parade, The Maine, Neck Deep, PVRIS, dan lain-lain.***