How the Friends Stars Have Stayed Friends Over the Years

Turns out "I'll be there for you" still rings true for these costars

LISA, COURTENEY & JEN

You know it's true BFF-ship when your friend invites you to her super-exclusive party – even more so when said party is code for a top-secret wedding. That was the case for Kudrow and Cox, who both attended Aniston and Justin Theroux's Bel Air nuptials on Aug. 5. Cox even served as the bride's maid of honor.