Here's Photographic Proof of the Friends Reunion

The Big Bang Theory actress Kaley Cuoco posted a photo on Instagram of her and her castmates hanging out with five of the six Friends on Sunday night.

The two casts collided at the taping for the upcoming NBC special honoring acclaimed sitcom director James Burrows.

Burrows directed the Friends pilot -- one of 15 episodes he helmed for the show -- and more than a thousand other episodes of television, including Cheers, Frasier, Taxi and Will & Grace.