Lena Dunham is joining American Horror Story and Twitter ain’t happy

So, it's official – Lena Dunham has joined the cast of American Horror Story.

The news was announced by series creator Ryan Murphy on Twitter earlier today.

Writing to his 704,000 followers, Ryan said: "Thrilled that my talented friend Lena Dunham is joining the AMERICAN HORROR STORY family.

"Always wanted to work together, and now we are (sic)!"

However, not many people are happy about the decision to cast Lena, and they all took to Twitter to share their opinions: