James Corden reveals he wears Spanx every single night for 'Late Late Show' — and he'd love to stop

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James Corden is eager to say sayonara to shapewear.

The "Late Late Show" host revealed this week that one of his driving motivators to lose weight is his resistance to Spanx: He wears the form-fitting undergarment every night under his suit. And he is over it.

"I think I'm making a sacrifice wearing these Spanx," he told RuPaul during a conversation on his show. "I'm not even joking. My New Year's resolution is to try to get to a point where I do one show this year not wearing Spanx."

The late night host certainly isn't the only star whose closet is stocked with Spanx: The celeb-favorite undergarment is widely known as a red carpet staple for men and women alike. Among the most popular men's items are the brand's compression t-shirt, which smooths lumps under shirts and blazers. (It also comes in a v-neck style.)

As for women, classic items like the tummy, hip and thigh-shaping shorts have become so beloved that Spanx has since expanded the brand to also sell ultra-flattering pants and jeans.

Understandably, though, Corden is ready to take a break from his Spanx collection: "It'll be like I'm suddenly free, Ru!" he said. "I won't know what to do! I'll be breathing!"

RuPaul then asked if Corden would publicly share news of the day he no longer has to wear Spanx, to which Corden replied, "Oh, you'll know, babe. You'll know, babe. I will shout it from the rooftops!"

Corden has spoken candidly about his lifelong struggle to lose weight, even delivering a moving monologue in September 2019 in response to controversial comments by Bill Maher. The HBO host had argued that fat-shaming "needs to make a comeback."

"Fat shaming never went anywhere," Corden countered. "Ask literally any fat person. We are reminded of it all the time ... There's a common and insulting misconception that fat people are stupid and lazy, but we're not. We get it, we know. We know that being overweight isn't good for us, and I've struggled my entire life trying to manage my weight, and I suck at it. I've had good days and bad months."