Mark Hoppus of Blink-182 has revealed that he recorded vocals for an unreleased Linkin Park song whilst visiting the band during studio sessions for their comeback album 'From Zero'. The disclosure came during a Q&A following the Los Angeles premiere of Linkin Park's documentary 'Unshatter' on 24 September, where Hoppus jokingly confronted Mike Shinoda about why his vocal takes never made the final cut. Shinoda responded with a compliment, suggesting that Hoppus's contribution "was greater than the song," and the pair hinted at potential future collaboration opportunities.

The documentary chronicles Linkin Park's return to music-making following Chester Bennington's death in 2017 and a seven-year hiatus. Directed by Joe Hahn and Mark Ritchie, the film documents the band's gradual creative process beginning in 2022, the introduction of new vocalist Emily Armstrong, and the release of their 2024 album 'From Zero' – their first studio album in seven years. The documentary premiered in Los Angeles and will receive a limited global cinema release from 30 September, including special formats such as ScreenX and 4DX.