Sarah Brightman will perform the new song during a 10 day stay on the ISS.

British Soprano, Sarah Brightman, who shot to fame starring opposite Michael Crawford in the original 1986 production of Andrew Lloyd Webber’s blockbusting musical theatre hit The Phantom of the Opera, has revealed that she will perform a newly composed song by Lloyd Webber in space later this year.

The 54-year-old British soprano and former wife of Lloyd Webber, announced in October 2012 that she would be travelling to the International Space Station, and began her training for her out of this world trip at the cosmonaut training facility at Star City near Moscow in January. She will blast off on a Russian Soyuz spacecraft on September 1 and spend ten days in orbit aboard the space station.

Speaking at a press conference in London yesterday, Brightman said she had been working closely with Lloyd Webber, whom she divorced in 1990, to create a song that “suits the idea of space.” She also warned of the challenges of singing in microgravity, saying that singing in space “is a very different thing to singing down here. We use the Earth to ground ourselves when we sing and the air around us. This is going to be very different.”

Of the new composition, which Brightman recorded in New York next week for a retrospective recording release due later this year, she said “I wanted to find a piece that was beautiful and simple in its message, as well as not complicated to sing.”

It’s estimated that Brightman has paid around the equivalent of $67 million (£34 million) out of her personal wealth to become the eight “space tourist”, although she said “contractually” she was unable to confirm the exact amount she had paid for the trip. Brightman cited the 1969 Moon landing, which she watched as a nine-year-old, as her biggest inspiration for wanting to go for space, describing the landings as a “pivotal moment” in her life.

Brightman will not however be the first singer to have a space-hit. In 2013, Canadian astronaut Chris Hadfield recorded David Bowie’s Space Oddity from the ISS. The film, published on YouTube became a huge viral success and has so far been viewed over 24.8 million times.

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