Star Wars Celebration is long gone at this stage, but we're still only learning about some of the hijinks that some of our favourite Star Wars cast members were getting up to. 

Case in point, this video of John Boyega photobombing a series of fan photos at Celebration. The exceptionally charming Boyega photobombed the photographs that some Star Wars mega fans were having taken before revealing himself, much to delight of the fans. 

It's all worth watching but dabbing with BB-8 is by far the highlight. 

The video and stunt are all part of promoting Force for Change which will give some lucky Star Wars fans to win incredible prizes including a visit to Skywalker Ranch, an appearance in the Han Solo spin off movie an invite to the world premiere of The Last Jedi.