Lady GaGa is planning to sell off her spare Virgin Galactic ticket after she was booked to perform during one of the space shuttle flights.

The singer will become the first star to perform in space when she sings onboard a Virgin Galactic flight next year (15) as part of New Mexico's Zero G Colony tech festival.

Gaga has now revealed she already had a ticket for one of Sir Richard Branson's space trips when she was booked for the gig, so she is selling her seat to raise money for her Born This Way Foundation.

She tells America's Harper's Bazaar magazine, "I honestly can't wait (to perform in space). I can't wait to design the performance. I'm auctioning off my second seat to raise money for the Born This Way Foundation."

Gaga also insists she is planning an out of this world performance, adding, "I want to make a moment that is about much more than me. Performing in space is such an honour. I want to challenge myself to come up with something that will not only bring everyone together but will also have a message of love that blasts into the beyond."