Gleeks and non-fans alike are reeling from Cory's sudden death. Take a look back at the star during happier times.
Cory Monteith passed away on Saturday at age 31.
Prior to Glee, Cory appeared on tons of TV shows, like Kyle XY.
He looked excited (and young!) at a Glee preview event in 2009.
We'll never hear "Don't Stop Believin'" the same way again.
Cory's character Finn started the show dating Quinn, the mean-girl queen bee of the Cheerios.
Finn and Rachel grew closer, even though Finn was embarrassed about being seen with her. They kissed toward the end of season one.
A year into the Glee hoopla, Cory had already adopted the A-list look (of all black).
Before dating Lea, Cory went on a few dates with Taylor Swift.
Even before they publicly dated, Cory and Lea had undeniable chemistry.
They kept their relationship quiet for awhile, forcing Gleeks to check their body language every time they stepped out in public.
When Cory entered rehab in late March 2013, Lea released a statement promising to stick by his side.
After exiting rehab, the pair departed for a romantic trip to Mexico.
The Chrysalis Ball was Lea and Cory's last public event attended together.