Linkin Park frontman and lead singer Chester Bennington tragically committed suicide almost a year ago. Surviving members are still making sense of his death, including fellow frontman, Mike Shinoda. Bennington’s death has even brought uncertainty to the band’s future.

Shinoda recently sat down with Rolling Stone, during which he said: “I’m used to hearing the songs in a certain way, so we’ve started making practice tracks. So if anybody’s missing, we can turn on the album version of their track and practice as if they were there. When you think about some of my parts, we would go back and forth, so I would want to hear that other voice.”

Shinoda detailed his uncertainties about Linkin Park’s future in a podcast, according to Blabbermouth. When asked if Linkin Park would continue, Shinoda said, “That’s the million-dollar question… There aren’t any answers to that at this point.”

A tribute concert was held last October in Los Angeles at the Hollywood Bowl, during which people like BUSH’s Gavin Rossdale, KORN’s Jonathan Davis, and Avenged Sevenfold’s M. Shadows came out to perform Linkin Park hits.

Shinoda said of the show, “I was listening back and going, ‘God, these people were all really great singers and none of them were Chester‘… It became obvious that you can’t just hire some schmuck to get up there and sing with us, ’cause they won’t be able to hit half the stuff.”

Mike Shinoda’s album Post Traumatic came out this past Friday.