Katy Perry gives tour of space capsule ahead of Blue Origin launch

Katy Perry has given her followers a tour of the capsule she'll be travelling in when she launches into space on Monday.

The Firework singer and five other women - including TV personality Gayle King and Jeff Bezos's fiancée Lauren Sánchez - are set to make history as the first all-female crew in space since 1963 when they blast off in West Texas around 8.30am local time.

Bezos's Blue Origin flight will last around 11 minutes and they will travel more than 100km (62 miles) above Earth.

On the eve of the launch, Perry, dressed in a blue jumpsuit, took her Instagram followers inside the capsule for a tour.

"Okay, I'm going to show you the capsule that we have been training in for the last few days," she said, before going inside the craft and pointing to her seat. "Here I am! Seat number 2!"

After revealing her call sign is "Feather", the pop star sang the line: "Here on the New Shepard."

"I think I'm gonna sing, I'm gonna sing a little bit - I've got to sing in space!" she revealed, before turning the camera to show the other five seats where her "astronaut girlie friends" would be for the flight.

"We are the Taking Up Space Crew. Of course, that saying has had a different meaning to it but I think it's now the first time ever that it's a double entendre," Perry continued. "I do believe this. I'm not going to say I can't believe I'm here. I do believe this because I think that believing your dreams and saying that is actually how you make your dreams come true!"

In the caption, the California Gurls singer revealed just how much the history-making moment meant to her.

"I've dreamt of going to space for 15 years and tomorrow that dream becomes a reality," she wrote. "The Taking Up Space Crew launches tomorrow morning at 7am CT and I am SO honoured to be alongside 5 other incredible and inspiring women as we become the first ever all female flight space crew!"

The three famous women will be joined by rocket scientist Aisha Bowe, bioastronautics research scientist Amanda Nguyen, and film producer Kerianne Flynn.