Glenn Frey - the musician best known for the incredible string of hits he wrote and recorded with the Eagles - has passed away at the age of 67.
Frey had reportedly been struggling with intestinal issues for several years.
He underwent surgery in November, but the sources say the results were not as he had hoped. His passing was confirmed Monday.
Together with Don Henley, Frey co-wrote some of the band's biggest hits, such as "Hotel California" and "Desperado."
He co-wrote and sang lead vocals on a number of other wildly successful Eagles songs, such as "Take It Easy," Tequila Sunrise," "Lyin' Eyes," and "Heartache Tonight."
After the band broke up in the '80s, Frey launched a successful solo career with such hits as "The Heat Is On."
Frey reunited with the band in 1994 for the Hell Freezes Over tour, which still ranks as one of the highest-grossing in rock history.
Glenn released his fifth and final solo LP in 2012, but remained active with the Eagles until the end of his life.
The band was recently forced to pull out of its scheduled performance at the Kennedy Center Honors in December due to Frey's health problems.
One of the most highly-regarded singer-songwriters of the '60s, '70s and '80s, his loss leaves yet another void in the annals of rock history.
Not surprisingly, he became the subject of countless social media tributes just moments after news of his death went public.