The 2025 When We Were Young Festival has expanded into a two-day festival set for Oct. 18-19, 2025, as the Las Vegas Festival Grounds in Las Vegas.

The fourth installment of the nostalgic mega-fest, this one was originally just one day, but citing “overwhelming demand” from fans it has now turned into another multi-day version of the fest. The festival posted on Instagram: “WWWY25 DAY 2 the best day of your life. twice. October 18th & 19th 2025. 

All acts — including Blink-182, Panic! At The Disco, Weezer, Avril Lavigne and The Offspring — will perform both days. They’ll be joined by All Time Low, Knocked Loose, The Gaslight Anthem, Jack’s Mannequin and Bad Religion on Saturday and Sunday.

For ticket information, head to the fest’s website.

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