My Chemical Romance performs Foundations of Decay LIVE in Las Vegas, Nevada during the When We Were Young (WWWY) Festival, a large scale Emo music festival that occurred in October of 2022.

WWWY took place at the Las Vegas Festival Grounds next door to Circus Circus Casino and Resort on October 23rd and 29th (with the first date, October 22nd canceled due to extreme wind).

The daily lineup included (With a constant overlap of bands playing at the same time on different stages):

3OH!3
Acceptance
AFI
Alex G (10/29 only)
Alkaline Trio
The All-American Rejects
Anberlin
Armor for Sleep
Atreyu
Avril Lavigne (10/23 only)
Bayside
Black Veil Brides
Boys Like Girls
Bright Eyes
Bring Me the Horizon
Dance Gavin Dance
Dashboard Confessional
A Day to Remember
Four Year Strong
The Garden
Glassjaw
Hawthorne Heights
HorrorPops
Lil Huddy
I Prevail
Ice Nine Kills
Jimmy Eat World
Jxdn
Kittie
Knocked Loose
La Dispute (10/23 only)
The Linda Lindas
The Maine
Manchester Orchestra
Mayday Parade
Meet Me at the Altar
Millionaires
Mom Jeans
Motionless in White
My Chemical Romance
Neck Deep
Nessa Barrett
Paramore
Palaye Royale
Prentiss
Pierce the Veil
Poppy
Pvris
The Ready Set
The Red Jumpsuit Apparatus
Royal & the Serpent
Saosin
Senses Fail
Silverstein
Sleeping With Sirens
The Starting Line
State Champs
Story of the Year
The Story So Far
Taking Back Sunday
Thursday
TV Girl
Underoath (10/29 only)
We the Kings
Wolf Alice (10/23 only)
The Wonder Years
The Used