
After vowing to sing during her voyage into space earlier today, it has since been revealed which song Katy Perry performed.
The mother-of-one was launched hundreds of metres above the Earth earlier today (14 Apr) as part of an all-female tourist group.
Along with five other woman, the group made their journey on Jeff Bezos' Blue Origin' space tourism New Shepard rocket.
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The aircraft is a fully autonomous vehicle, with no specialised roles for the crew, which also included Bezos' fiancé and Emmy-winning journalist Lauren Sánchez, NASA rocket scientist Aisha Bowe, and civil rights activist Amanda Nguyen.
CBS Mornings and SiriusXM radio host Gayle King also joined the line-up, alongside decorated film producer Kerianne Flynn.
Blue Origin, the organising firm previously told press: "Every person on board is a crew member - there are no pilots."
Prior to take off, Perry expressed her gratitude, claiming she never expected to be picked for the flight.
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"If you had told me that I would be part of the first ever all-female crew in space, I would have believed you," the 'Firework' singer announced.
"Nothing was beyond my imagination as a child."
According to CBS News host Gayle King - another crew member -, the 40-year-old sang 'What a Wonderful World', the nostalgic hit made famous by US-born trumpeter and vocalist Louis Armstrong.
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The flight into space lasted for around 11 minutes, taking the crew over 100km (62 miles) above Earth. The group then crossed the internationally recognised boundary of space, which gave them a few moments of weightlessness.
After parachuting back down to Earth, Perry was photographed kissing the ground, claiming the experience in outer space made her feel 'super connected to love'.
She told attendees: "To go to space is incredible and I wanted to model courage and worthiness and fearlessness."

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Sánchez - the 55-year-old woman that brought the group together - admitted she was 'so proud' of her crew.
"Earth looked so quiet. It was just quiet," she told press, adding it was not what she expected.
"I don't think you can describe it. It was quiet but also really alive.
"You look at it and you're like, we're all in this together. That's all I could think about."
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The mother-of-three also became teary as she discussed her 'complete and utter joy'.
"I don't cry that often so I didn't expect to be this emotional," she continued.
More to follow.
Topics: Katy Perry, Music, Space, US News