The tragic news came late Saturday night that Hollywood has lost a young and adored star: Cory Monteith, star of Fox's hit show Glee, was found dead in a hotel in Vancouver, Canada. CNN reported that The 31-year-old actor had been battling drug problems since he started taking them at age 13, but drugs have not been stated as the cause of death. Police have ruled out foul play, but hope to learn more after the autopsy, scheduled for Monday. Celebrities took to Twitter to share their pain at hearing the news of Monteith's passing.

Here are Tweets from some of his Glee costars and guest stars:

Harry Shum Jr. (Mike Chang on Glee):

Lauren Potter (Becky Jackson):

Dot-Marie Jones (Coach Beiste):

Kristin Chenoweth (Recurring guest star, April Rhodes):

Cheyenne Jackson (Guest star, Dustin Goolsby):

Damian Mc Ginty (Rory Flanagan):

Here's what other celebrities had to say about the tragic loss:

Taylor Swift:

LeAnn Rimes Cibrian:

Nathan Sykes:

Neil Patrick Harris:

Richard Branson:

Kelly Osbourne:

Lori Loughlin:

Alyssa Milano:

Giuliana Rancic:

Nick Jonas:

Rihanna:

Eric Stonestreet:

Nick Zano:

Kaley Cuoco:

Scott Porter:

Nina Dobrev: