The When We Were Young Festival will now be a two-day event, as the second date was announced for Sunday, October 20, 2024, at the Las Vegas Festival Grounds. The lineup for both days includes headliners My Chemical Romance and Fall Out Boy, featuring over 50 full album live performances from various artists. Tickets go on sale to the general public on Tuesday, November 21, at 10 AM PT. For tickets and more information on the event, go to the festival’s website