Chris Cornell
Chris Cornell is remembered by his loved ones, collaborators and fans.  Here, he is pictured at the Prophets of Rage Anti Inaugural Ball on Jan. 20, 2017 in Los Angeles, California. Kevin Winter/Getty Images

Some of the big names attended Chris Cornell's funeral and memorial service at the Hollywood Forever Cemetery Friday. The Soundgarden rocker died last week in what authorities ruled as a suicide, however, Cornell's family raised doubts about the findings.

Metallica's Lars Ulrich, Dave Navarro and Gavin Rossdale paid tribute at the service, which was also attended by Brad Pitt, Pharrell Williams, Christian Bale, Courtney Love and more. Hollywood Forever Cemetery is the final resting place for numerous stars, including Jayne Mansfield, Douglas Fairbanks, Rudolph Valentino and Cecil B. DeMille.

"Chris was as melodic as The Beatles, as rocking as Sabbath and as haunting as Edgar Allan Poe," Tom Morello, Cornell's bandmate in the supergroup Audioslave, said during his eulogy.

Read: Chris Cornell’s Wife Vicky Karayiannis Knew Something Was Wrong Before Suicide

Linkin Park's Chester Bennington performed Leonard Cohen's "Hallelujah" during the memorial service. Following the services, mourners headed to Cornell's final resting place in the Garden of Legends section of Hollywood Forever Cemetery. "All Night Thing" by the band Temple of the Dog, which Cornell was a member of, played during the procession.

Cornell was cremated on May 22, 2017 and his gravestone read: “Voice of our generation and an artist for all time.”

The program handed out to attendees featured a Cornell quote: "We are neighbors in a modern world where proximity is relative and the threshold to our hearts moves outside time and space." His ashes were placed next to his friend Johnny Ramone's remains, TMZ reported.

Cornell, 52, was found dead in his hotel in Detroit last week hours after his band played a concert in the city.

Though an initial autopsy officially determined his cause of death to be suicide by hanging, Cornell’s family is waiting for the toxicology tests result that could reveal any substance in his system at the time of his death.

More details about Cornell's last conversation with his wife Vicky Karayiannis were revealed Thursday. According to TMZ, Cornell called his wife 30 minutes before killing himself in a Detroit hotel room.

During the conversation, Cornell complained about his voice, repeating that he “blew” it. The singer then tried to change the topic to something that didn’t make sense and his wife started getting concerned.

She immediately suspected drugs. “I need to know what you took tonight. You don't sound right, sweetheart,” Karayiannis said. He replied, “I was really angry and I just took two Ativan. I'm really pissed and I had to calm myself down.”

Earlier, Cornell's family lawyer said: “Without the results of toxicology tests, we do not know what was going on with Chris—or if any substances contributed to his demise. Chris, a recovering addict, had a prescription for Ativan and may have taken more Ativan than recommended dosages,” adding, “the family believes that if Chris took his own life, he did not know what he was doing, and that drugs or other substances may have affected his actions.”