Zendaya worried her Mugler metal robot costume was a "bad idea" when she started getting "really lightheaded".
Her stylist, Law Roach, managed to get his hands on the 1995 bodysuit but was worried his client would "chicken out at the last minute" because it was quite the challenge to wear.
Taking part in Vogue's 'Life in Looks' series, she recalled: "He was like, 'Are you being serious? Don't play with me! Don't get me started on something and make me do this, and you're going to chicken out at the last minute and be too scared to wear it."
Zendaya wore it to the London premiere of 'Dune: Part Two' earlier this year and managed to pull it off effortlessly.
She said: “Immediately after wearing it for 10 minutes or less than that, I got really lightheaded. The metal conducts and holds onto heat very quickly and traps it in. I’m wearing a complete bodysuit. There’s a barrier so you already have a layer of material on your skin.
“But I put it on, made it out there and did it.”
The minute the red carpet was done, she changed into a classic black Mugler gown.
The 27-year-old actress - who is one of the co-chairs of the Met Gala next month - previously explained that she likes to have "fun" with her looks because it all helps her find her characters for the big screen.
She told Vogue: "I just enjoy clothes and playing with them and creating new characters.
“That’s what I find fun about fashion – its transformative quality, its ability to be like storytelling.
"I prefer to have my hands free. So either I have a small bag – like a crossbody, that I can take with me everywhere.
“As long as it can fit my phone, lip gloss, and a little camera. I am one of those people that like to fill their bag.
“I gotta put my computer in it, I gotta put this, I gotta put that. So I’m either going all or nothing. I’ve gotta have options. I need options."
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