Eagles founding member and guitarist Glenn Frey has sadly died. He was 67-years-old.

“Glenn fought a courageous battle for the past several weeks but, sadly, succumbed to complications from rheumatoid arthritis, acute ulcerative colitis and pneumonia,” a statement posted on the band’s website read on Monday, Jan. 18.

glenn frey

Glenn in January 1973.

This morning, the late star’s friend Bob Seger revealed Glenn had been ill and in the hospital since November. “First he caught one set of pneumonia, then he caught a very virulent set of pneumonia,” Seger told the Detroit Free Press. “They were trying like hell to keep him alive. He’d been at Columbia Medical Center since November.”

RELATED: David Bowie Dead at Age 69 Following Cancer Battle

“[Eagles manager] Irving [Azoff] pulled every ace out of the hole,” he continued. “He had the eight best specialists working on Glenn. About a month ago, they had to throw up their hands.”

glenn frey

Glenn, second from left, with the Eagles in January 1970.

Glenn won six Grammys with the Eagles before embarking on his solo career after the band split in 1980. He released his first solo album, No Fun Aloud, in 1982. The Eagles reunited in 1994 and released their latest album in 2007.

He is survived by his wife, Cindy Frey, a daughter and two sons. Our thoughts are with Glenn’s friends and family during this difficult time.