Media playback is unsupported on your device Media caption Sarah Brightman undergoes tests ahead of her space trip - Footage courtesy Pulse Films

British singer Sarah Brightman is to travel as a space tourist to the International Space Station.

The classical recording artist, once married to Lord Andrew Lloyd Webber, will be part of a three-person crew flying to the ISS.

After completing a tour in 2013, Ms Brightman will embark on six months of preparation at the Star City cosmonaut training centre in Moscow.

She will be the seventh space tourist to visit the ISS.

Once there, she says she intends to become the first professional musician to sing from space.

Space tourists 2001 - Dennis Tito (US)

2002 - Mark Shuttleworth (UK/S Africa)

2003 - Gregory Olsen (US)

2006 - Anousheh Ansari (US/Iran)

2007 - Charles Simonyi (US/Hungary)

2008 - Richard Garriott (US/UK)

2009 - Charles Simonyi (US/Hungary)

2009 - Guy Laliberte (Canada)

"This voyage is a product of a dream, my dream. Finally it can be a reality. I am more excited about this than anything I have done in my life to date," she told a news conference in Moscow.

She added that the schedule for her flight would "be determined very shortly by (Russian federal space agency) Roscosmos and the ISS partners."

Alexey Krasnov, head of the ISS programme at Roscosmos, said Ms Brightman had passed the required mental and physical examinations to fly into space.

Space Adventures, the Vienna-based company that organises flights for private spacefarers, did not disclose how much Ms Brightman had paid for her seat on the Soyuz.

But the last space tourist, Cirque du Soleil chief executive Guy Laliberte, paid around $35m for the privilege.

Sarah Brightman began her career with the dance troupe Hot Gossip, which had a chart hit in 1978 with I Lost My Heart to a Starship Trooper.

She subsequently starred on the West End stage in Cats and Phantom of the Opera, both penned by Andrew Lloyd Webber, whom she married in 1984.

The pair divorced in 1990 and Brightman embarked on a solo singing career. She helped popularise the classical crossover genre, scoring a worldwide hit with her duet with Italian tenor Andrea Bocelli, Time To Say Goodbye.