Katy Perry is "really excited" about heading into space with her husband, Russell Brand.

The E.T. singer bought Brand a seat on one of Richard Branson's Virgin Galactic space tourism flights for his 35th birthday last year and is planning to accompany him.

Perry said: 

"I'm so into extraterrestrial stuff... It's very difficult for me to look up into the sky in the middle of the night and not think that our planet is one of... a bajillion (sic). It's really, really small. And Russell and I are interested in anything extraterrestrial. I mean, we're going to space! We're really excited.

"There's a group of people that work with Richard Branson, and he does the Virgin flights, and for Russell's birthday, I got him a flight to space. Because I just thought, 'What else can I give this man? He's had every experience in the world, but not a trip to space!' So he's also always searching for what is beyond this world, and we both kind of have this same vision and are always looking for more. It will be really exciting. It's like a half-a-day trip. I think there's a lot of people who are signed up for this experience."

Watch the official video for Katy Perry's E.T. (featuring Kanye West) below: