After Glee fans noticed that Amber Riley doesn't follow Dianna Agron and Darren Criss on Instagram, they speculated that it might be connected to last week's post by Lea Michele ...

Three William McKinley High grads have reunited. Glee stars Lea Michele, Dianna Agron, and Darren Criss got together earlier ...

Glee' alums Lea Michele and Dianna Agron watched costar Darren Criss perform on Broadway. Michele joked that they were her high school classmates.

"Night out with my beautiful friend from high school," Michele captioned a post in reference to the hit musical-comedy series ...