Jessica Simpson has disclosed the rather peculiar reason she's been consuming 'snake sperm'.

The 44-year-old 'Irresistible' singer has been hinting at exciting developments in her music career, following her comeback to the industry after nearly 17 years with her new single 'Use My Heart Against Me', released last month (21 February).

Since then, she's been sharing glimpses into her life with fans, and one of her recent social media posts has definitely stirred up reactions from her millions of followers online.

In a short video posted to Instagram last week (28 March), the 'I Wanna Love You Forever' star was seen telling fellow musicians in a studio: "They're like, 'What are you drinking?' Because it's this Chinese herbal thing.

"And I'm like, 'I don't know.' My vocal coach advised me to drink it, and they Googled the ingredients and - snake sperm."

According to Simpson, the mixture in question is 'like a honey'.

While she didn't specify the product name, she added: "So, if you want good vocals, you gotta drink snake sperm."

Simpson accompanied the video with emojis of a snake, a microphone, and a test tube.

Snake sperm, anyone? (Instagram/@jessicasimpson)

As expected, her 6.3 million followers couldn't wait to express their reactions to her revelation, with many flocking to the comments to share their thoughts.

One Instagram user wrote: "Hahaha, that’s the Jess we know and love."

"Lol," another chimed in. "Hilarious and still so carefree!"

A third fan exclaimed: "I absolutely adore her."

"Like the chicken of the sea but snake version," joked another, while a final fan urged: "Put her back on TV right now lol!"

Earlier this year, Simpson released a statement to People, announcing that she and her husband, Eric Johnson, 45, were parting ways after 10 years of marriage.

Jessica Simpson and Eric Johnson have parted ways after 10 years of marriage (Instagram/@jessicasimpson)

The statement read: "Eric and I have been living separately, navigating a painful situation in our marriage.

"Our children come first, and we are focusing on what is best for them."

It continued: "We are grateful for all of the love and support that has been coming our way, and appreciate privacy right now as we work through this as a family."

Simpson and Johnson first met through a mutual friend in 2010 and became engaged in November of that same year after only six months of dating.

They married in July 2014 and share three children together: daughters Maxwell Drew, 12, and Birdie Mae, five, as well as their son Ace Knute, 11.