"It brought him great joy to know, that for decades, his music touched so many and will be his lasting legacy," his wife Amy Carmen writes.
Lawrence's late wife, singer Eydie Gormé, was his "partner on stage and in life" for more than 55 years.
"Mojo has left the building," a statement announcing the news on his Facebook page reads.
The cause of death was pancreatic cancer, according to a close friend & executive director of Kramer’s nonprofit Jail Guitar Doors.
The musician was fighting ampullary cancer, but toured until he succumbed to his illness.
Ladd was the inspiration for Tom Petty's "The Last DJ."
The artist was performing at a private event in Bahia when he collapsed onstage.
"We lost a beautiful man and inspiration to all of us drummers," Bieber wrote of the late Grammy-nominated drummer.
At 17, LeFevre wrote "Without Him," which Elvis Presley later recorded for his 1967 album, How Great Thou Art.
"Gary’s pavement drums were 'one take and hit record'…. Nailed it so well. rip," the band's frontman Stephen Malkmus writes.
