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Listen Out is an annual Australian music festival held in Sydney, Perth, Melbourne and Brisbane since September 2013. In 2018, an inaugural alternative version of Listen Out, titled Listen In took place in South Australia and New Zealand. The standard festival is held from late September to early October. Each Listen Out concert is a one-day event attracting both domestic and international hip-hop, indie, and electronic musicians. Listen Out uses three stages; Atari stage, 909 stage and Third base (formerly branded by Red Bull as Crate Diggers stage and Universal Store's Young Bloods stage).

Listen Out has been organised since inception by Fuzzy Operations. It attracted over 68,000 attendees during its 2016 festival tour. In parallel with the festival national youth radio Triple J runs an Unearthed competition, where the state winner performs at their capital's venue. The 2020 and 2021 festivals were cancelled due to the COVID-19 pandemic in Australia. It resumed in 2022 and continues to the present.