Millie Bobby Brown and Niall Horan had an adorable 'Stranger Things' Twitter exchange

If there's one thing guaranteed to get fans buzzing, it's a good ol' social media exchange between two celebrities.

Millie Bobby Brown has been delivering in this area in a big way lately.

She recently shared a photo with Drake at the Golden Globes on Instagram, then posted a screengrab of a message Ariana Grande had sent her, and now -- just to top it all off -- she's been chatting to Niall Horan on Twitter.

It started when the former One Directioner tweeted about his new favourite TV show.

This Tweet is currently unavailable. It might be loading or has been removed.

Then Brown, who is clearly also a fan of Horan's, responded.

This Tweet is currently unavailable. It might be loading or has been removed.

The exchange then proceeded to get even more adorable.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

Unsurprisingly, Twitter approved.

This Tweet is currently unavailable. It might be loading or has been removed.

This was followed by the inevitable calls for Horan to guest star in the show's next season.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

In a world where Harry Styles stars in the latest Christopher Nolan movie, it's not even that much of a stretch.