Ariana Grande asked if she's had plastic surgery while taking lie detector test

Ariana Grande has responded to speculation she's had plastic surgery in the past.

The singer and actor recently took part in Vanity Fair's 'Lie Detector Test', which saw her hooked up to one of these machines that determines whether an individual is lying or telling the truth.

Grande was asked a variety of different questions about her career, and there was one particular section that the 31-year-old hit back at.

The singer was asked by fellow Wicked star Cynthia Erivo: "Did you ever get work done to make yourself more popular?"

The former Nickelodeon star then asked whether 'work' meant plastic surgery, something confirmed by Erivo.

She immediately rebuffed claims she got her nose 'done', had a boob job, and a facelift.

Ariana Grande was asked if she's had plastic surgery (James Devaney/GC Images)

The lie detector confirmed Grande was telling the truth with these answers, with the singer then quipping: "This is the best day of my life. Take that you YouTube people."

Grande then denied having a fox eye lift and a chin implant, which won't come as a surprise due to the fact she literally asked how the latter procedure is done.

The lie detector test confirmed she was telling the truth once more.

Grande admitted: "I've had fillers in various places and Botox, but I stopped four years ago and that is the extent.

"I live in full support of all people who do these things. Whatever makes women, men, non-gender conforming people feel beautiful should be allowed. Why do we care?"

The clip from the interview has quickly gone viral on social media, with many praising Grande for her candid answers.

"She’s so cuteee I love her so much, " one fan said on Twitter, while a second added: "And just like that she ended them allegations."

Last year, Grande appeared emotional as she admitted to having Botox and fillers over the years.

In a video with Vogue Beauty Secrets, Grande emotionally quipped: "For a long time, beauty was about hiding for me, and now I feel like maybe it's not since I stopped getting fillers and Botox.

"I know, for me, I was just like, I wanna see my well-earned cry lines and smile lines. I hope my smile lines get deeper and deeper and I laugh more and more.

"I just think ageing can be such a beautiful thing."

Though the 'Thank U, Next' hit-maker didn't rule out getting cosmetic work done in the future.

"Now might I get a face lift in 10 years? Might, yeah," she laughed. "But these are just thoughts I feel like we should be able to discuss."