Chris Cornell's 12-Year-Old Daughter Performed A Beautiful Tribute To Her Father And Chester Bennington

"Hallelujah" holds a special meaning.

Soundgarden frontman Chris Cornell and his friend Chester Bennington of Linkin Park received a beautiful tribute Friday morning from a very special source — Cornell's 12-year-old daughter Toni, who joined OneRepublic's Ryan Tedder to perform "Hallelujah" on Good Morning America.

The song, written by the late Leonardo Cohen, was a meaningful choice to honor the musicians, who passed away just two months apart, both from apparent suicides. (Bennington died on July 20, which would have been Cornell's 53rd birthday.)

"Chester sang this at Chris' funeral, and this is arguably one of the greatest songs written in the last 50 years," Tedder told ABC News. "It's a very special song to us, and I think to most people and especially to Toni [Cornell] as well."

Linkin Park was originally scheduled to perform today as part of GMA's Summer Concert series, but after Bennington's death, OneRepublic filled in.

Many members of the crowd teared up as Toni sang, showing off a lovely voice. It wasn't her first time performing. In 2015, she and her father sang Bob Marley's "Redemption Song" together at the Beacon Theatre in New York City.

"It's an honor to perform this for my dad and Chester, and to sing for them," Toni said of the performance.

People reports that Toni and her sister Lillian Jean, 17, wrote letters to their late father for Father's Day, which were published on his official Facebook page. "You are my idol, someone I've always looked up to. You were always there for me. You pushed me forward every day, and you still do," Toni wrote in her letter.

Both Cornell and Bennington's legacies will live on, not only through their music, but also through helping others. The Seattle nonprofit Childhaven recently announced a new children's music therapy program in Cornell's name, started with a $100,000 donation from the Chris & Vicky Cornell Foundation.

Linkin Park, meanwhile, set up a tribute website for Bennington that includes resources for those in crisis. The band's charity Music For Relief also announced that it is directing donations to the One More Light Fund in the late musician's honor.

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