Toby Keith

Favre said his longtime friend was very tired.

"You were my biggest champion and the guiding light in my darkest times."

Fans shouted out for Luke Combs to play a Toby Keith song, and Combs was happy to oblige.

Nearly two years before he died, Toby Keith says, he made peace with the fact that his cancer might be terminal.

Toby was rocking his signature mullet back then!

After learning of Keith's death, Nelson shared throwback footage of one of their many performances together.

Revisit the late star's remarkable legacy by tuning into 'CMT Remembers: Toby Keith'.

Eastwood inspired Keith's "Don't Let the Old Man In."

The father-daughter duo brought down the house.

As she grieved Keith's death, McEntire shared memories of their tours together in the mid-'90s.

"She's been a trooper."

The duo remember him as "rough, tough, loyal and kind."

In his tribute post, Shelton admits that Keith's death came as a shock, even though he knew the country legend had been battling cancer.

"Sign that boy up for the choir," she writes on social media.

After Keith's death on Monday (Feb. 5), stars flocked to social media to share tributes and remembrances.

He had everyone in tears — including him.