‘Stranger Things' fans are going crazy over this character theory...

The highly anticipated second season of 'Stranger Things' hit Netflix over the weekend - and if you haven't already binge watched the series, this fan theory may interest you...

Fans are speculating that Pennywise the Clown, from 'IT', will be making an appearance in the series.

But where did this theory come from?

Rumours started swirling after the 'Stranger Things' official Twitter account posted the following pic...

While the image doesn't give much away, devoted fans instantly recognised the image from somewhere else...

Yep, the ripped corner is exactly the same as Stephen King’s original IT poster.

We guess we will just have to wait and see!