Robbie Williams has taken to camping in the Californian wilderness in order to find if aliens really do exist, it's been reported.

Williams has apparently bought survival equipment and can now regularly be found in the dessert with a group of friends.

“Rob has been taking pals out to the woods for long weekends. He wants to live like a cowboy in a Western,” a source told the Sun newspaper.

“He also has a fascination with UFOs and thinks he has more chance of seeing one away from LA’s bright lights.”

Williams' interest in UFO's was unveiled earlier this year when he co-hosted a radio documentary about the phenomenon.

In the show, Williams and an alien expert travelled to a UFO conference in Laughlin, Nevada.

(by Jason Gregory)