'It's not so much the taste it's the texture!' Isla Fisher gags on salmon smoothie and spits chunk in her HAIR with Niall Horan on The Late Late Show

She's considered one of Australia's greatest comedic exports.

And on Wednesday, Isla Fisher reminded viewers of her appeal, while taking part in The Late Late Show's game of Spill Your Guts Or Fill Your Guts, alongside One Direction's Niall Horan, Ewan McGregor and show host James Corden.

Despite being a good sport, the 40-year-old Confessions of a Shopaholic star was left gagging after being forced to down a salmon smoothie with Niall, 23 - although she managed to laugh it all off.

Stomach-churning! Hollywood star Isla Fisher was left gagging on Wednesday after being forced to down a salmon smoothie with Niall Horan on The Late Late Show - although she managed to laugh it all off

'It's not so much the taste, it's the texture!' said Niall as Hollywood actress Isla spat out the clumpy mixture. 

As per the game rules, the mother-of-three had the option of either answering personal questions, or consuming stomach-churning foods such the salmon smoothie or bull penis.

Scroll down for video 

Gross! The Confessions of a Shopaholic star couldn't swallow the clumpy mixture and instead spat it out

The youthful beauty was teamed with Niall as they competed against James and Ewan.

If the actress chose not to answer a personal question, the pop star would also have to consume one of the stomach-churning foods and vice versa.

Making for great television, the celebrities had the option of tasting bull penis, salmon smoothie, beef tongue, bird saliva, scorpion or fish head.

Far from appetising: Making for great television, the celebrities had the option of tasting bull penis, salmon smoothie, beef tongue, bird saliva, scorpion or fish head

Decisions: Niall was given the chance to either name his least favourite member of One Direction, or consume the salmon smoothie

Niall was given the chance to either name his least favourite member of One Direction, or consume the salmon smoothie. 

One Direction consisting of Niall, Louis Tomlinson, Liam Payne and Harry Styles has been on hiatus since January following the departure of Zayn Malik last year. 

The One Direction member cursed right after James asked the question.

'I think you should drink, I am not your publicist,' Isla told her teammate.

'I think I might [reply] and just take the Daily Mail hit tomorrow, and throw out a crap answer. I'm trying to help Isla,' Niall said.

Safer option? After some pondering, Niall tucked in his napkin as he and Isla prepared to drink down the concoction

Fishy: Isla gulped down a glass of water in a flash as she attempted to get the taste out of her mouth

After some pondering, Niall tucked in his napkin as he and Isla prepared to drink down the concoction. 

Isla's signature red tresses were dipped in the salmon smoothie, resulting in her recoiling in horror and spitting out the remnants into a green napkin.

James and his teammate Ewan squealed in laughter as they struggled to down the drink.

Isla has been on the promotional trail for her new film Keeping Up With The Joneses.

The action-comedy also starring Zach Galifianakis centres around a suburban couple who become unwittingly entangled in the world of international espionage. 

Hilarious: Isla's signature red tresses were dipped in the salmon smoothie, resulting in her recoiling in horror and spitting out the remnants into a green napkin

Far from impressed: As expected, the Australian actress was none-too-pleased to deal with the aftermath of consuming the salmon smoothie

Aftertaste: Isla was seen spitting out the remnants of the smoothie into a green napkin

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now