Glee Behind-The-Scenes Photos for 300th Musical Performance!

Glee Behind-The-Scenes Photos for 300th Musical Performance!

Glee recently finished filming its 300th musical number - a mash-up of Adele's "Rumor Has It" and "Someone Like You" - performed by Mercedes and Santana, and you can check out all the behind-the-scenes photos, here:

Source: FOX