Rare Behind the Scenes Photos of 'The Muppets' Visiting Dagobah in 1979

We already know that Muppeteer Frank Oz played the part of Yoda in The Empire Strikes Back. Apparently, his Muppet connections resulted in a very special visit to the Dagobah set during filming, and some images of the occasion recently turned up over on Imgur.

The photographs showed Muppet characters, such as Miss Piggy and Kermit the Frog, hanging out casually with Yoda and the rest of the Star Wars folks back in August, 1979.