"Waiting Room" is a song by Fugazi.
Linkin Park used "Waiting Room" as the pre-show song before going on stage beginning with their comeback show in Los Angeles in September 2024. It was used at all 2024 concerts for the band.
The song was played over the PA loudly and lights went down for the band's intro as soon as it ended.
Notably, "Waiting Room" has a bit of history with the band and is one of Mike Shinoda's favorite songs. It was on his pre-show mix of music for Projekt Revolution 2007, his solo Post Traumatic Tour in 2018-2019, and more.