She’s been known to do shots of tequila on This Morning, and now Piers Morgan has really spilled the beans on Holly Willoughby’s drinking habits.

The Good Morning Britain presenter joked that the 37-year-old keeps alcohol under her desk when she’s working.

During an interview with Keith Lemon on today’s show, the topic of conversation turned to Celebrity Juice and Holly’s antics.

Speaking to hosts Piers, 53, and Susanna Reid, 47, Keith said: “Celebrity juice is very boozy. I’m not saying you should go and get drunk and stuff.”

Piers then revealed: “Holly Willoughby has vodka under her desk. I’ve sat next to her and seen it.”

Continuing to joke about Holly, funnyman Keith added: “She’s like an old man with a brown paper bag.

“She looks like an angel, but she’s got a guzzler of a tram. She’s always at it. Tequila. She walks round the house with a drip full of booze.”

Piers and Susanna couldn’t contain their laughter, which led Keith to tell them: “You’re only smiling because you know it’s true.”

Outspoken Piers agreed: “I do know it’s true. I’ve drunk with Holly Willoughby. Trust me, if you have lunch with Holly Willoughby you cancel dinner.”

Keith, who was appearing on GMB to promote his new TV show Keith Lemon: Coming in America, then said of fellow Celebrity Juice panellist Fearne Cotton: “And Fearne, who you think is the rock chick is actually like the girl next door. All she eats is twigs and berries.”

The news about Holly’s boozing comes after the mother-of-three shocked This Morning viewers by wearing an £8 dress this week.

Holly sent shoppers crazy when she presented the ITV show in the cute summer dress, and it immediately sold out online.

Showing off her slender pins in the cute leaf-print number, Holly shared a snap of her outfit on Instagram – and revealed where it was from.

“Morning Monday… today’s look on @thismorning dress by @10store shoes @officeshoes #hwstyle,” she wrote alongside the full-length picture.

The short-sleeved number, which falls way above the knee, sold out in “record time” according to the brand’s Instagram.

10store reposted Holly’s picture and captioned it: “Thank you all so much for your love of this dress worn by @hollywilloughby on @itv’s @thismorning yesterday.

“We sold out in record time! We’re working hard on a restock – so sign up for updates and visit 10STORE.COM for more style steals!”