The man behind the 'Storm Area 51' Facebook event is setting up an alien-themed festival.

Bizarre on Female First

Bizarre on Female First

The event's creator Matty Roberts gained worldwide attention after two million people signed up to allegedly raid the top secret military base in Nevada - which many conspiracy theorists believe holds extra terrestrial life and technology - on September 20.

However, after receiving a warning from the US air force about the campaign, the organiser has now teamed up with event producer The Hidden Sound to put on music festival - dubbed Alienstock - in the nearby town of Rachel next month.

The website says: ''We're aiming to establish something unique here, a meeting place for all believers. Come out to the desert to dive into a world full of live music, arts, and camping under the stars.''