Warchiello has seen Linkin Park 36 times.

Linkin Park is an alternative rap-rock band formed in Agoura Hills, California in 1996. Originally called "Xero," the band took on its current name in 1999. In 2000, Linkin Park dropped its debut album "Hybrid Theory" (a name used by the band for a short period between the "Xero" and "Linkin Park"). Linkin Park dropped its seventh album "One More Light" in 2017. It was the last to feature lead singer Chester Bennington before his passing. Following Benington's death, Linkin Park performed one final benefit show before disbanding. In 2023, the group secretly reunited with founding members Mike Shinoda, Brad Delson, and John Hahn joined by new members Emily Armstrong (of Dead Sara, Colin Brittain and Dave "Phoenix" Farrell. The reunion was announced on September 5, 2024, with a world tour in support of the band's eighth studio album "From Zero" beginning only six days later.