Singer Lady Gaga wants to wed actor-boyfriend Taylor Kinney in space in early 2015.

The 28-year-old singer wants to have a commitment ceremony with Kinney while onboard the Virgin Galactic flight, reports femalefirst.co.uk.

"Gaga and Taylor want to make a pledge for life, and think the space flight is too big an opportunity to pass up," said a source.

"It would be typical of her to have the least conventional wedding ever. Of course, it would be a simulated-style marriage as there wouldn't be a priest or religious figure there.

"But they don't care about convention, it's more about making each other a life-long promise," added the source.

While the wedding ceremnoy is yet to take place, the "Applause" hitmaker is set to perform during a trip to space on the special flight - which will cost $250,000 per seat - and she is looking forward to using the opportunity to spread a "message of love".

She said: "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."