In a lengthy seven-and-a-half-minute video, he told fans on the social media network another "Riddick" movie is in the works.  

You wouldn't know Diesel was making a big announcement from the start of the video. The first three-minutes involves the "Fast and the Furious" actor dancing and lip-syncing to Katy Perry's "Dark Horse." 

Around the 3:12 mark Diesel makes a pretty big announcement about an impending sequel to last year's "Riddick" after thanking fans for their support to bring the third film in the series to screen.