The "When We Were Young" festival is an annual rock music festival held at the Las Vegas Festival Grounds in Winchester, Nevada. It typically takes place in October, usually over two days. The festival started in 2022 and features genres including emo, pop-punk, alternative rock, and metal. The first edition was held on October 22, 23, and 29, 2022. The 2023 edition was on October 21 and 22. The 2024 festival occurred on October 19 and 20. The upcoming 2025 edition is planned for October 18 and 19, featuring headliners like Panic! at the Disco and Blink-182.