Rock & Roll Hall of Fame guitarist Gene Cornish of The Rascals collapsed on stage while performing in Montana but is expected to recover.
Cornish, 74, was still hospitalised but was resting comfortably after he collapsed on Friday the Alberta Bair Theater in Billings, his pblicist Melissa Kucirek said.
Kucirek said she did not know what caused Cornish to collapse.
"Gene is working with doctors to remedy (the problem) and get back to doing what he loves most," Kucirek said in an email.
Jody Grant, programming and marketing director for the theater, told the Billings Gazette newspaper that medical personnel used a defibrillator and performed CPR on Cornish before he was taken to the hospital.
Cornish and Cavaliere had completed the first song of a concert and Cavaliere had begun playing one of the band's 1960s hits, A Beautiful Morning, when Cornish collapsed.
Australian Associated Press