The fantasy worlds of Friends and The Big Bang Theory have collided in a picture that has lit up Instagram and set the hearts of many fans beating just a little faster.
Kaley Cuoco (Penny in Big Bang) uploaded the group photo of herself and most of the cast from the other two shows to Instagram with the caption: "I died and went to heaven."
Included in the shot are Jim Parsons, Simon Helberg and Johnny Galecki, and, from Friends, Matt LeBlanc, Jennifer Aniston, David Schwimmer, Courtney Cox and Lisa Kudrow.
Matthew Perry was excused from the festivities because he was busy rehearsing a new play.
The occasion was a tribute to legendary director James Burrows, co-creator of Cheers among an extraordinary list of other shows.
The Friends cast are among stars set to feature together in a two-hour tribute to Burrows planned for February.