They may be familiar faces these days, but once upon a time these celebrities were complete unknowns.
And likes the likes of Liam Hemsworth and Tammy Hembrow have been reflecting on their pre-fame days recently by sharing their high school photos on Instagram.
The ‘Throwback Thursday’ pictures prove even the most glamourous stars had their awkward teenage years.
‘Throwback Thursday to when I had REAL freckles and thick eyebrows’: Jackie O Henderson joined the horde of Australian celebrities sharing their adorable childhood photos
Radio host Jackie ‘O’ Henderson, 45, shared an old school picture not long ago.
‘Throwback Thursday to when I had REAL freckles and thick eyebrows,’ she captioned the cringeworthy post.
‘I blame Pamela Anderson for making me think it was cool to wax them all off.’
‘I blame Pamela Anderson’: Mourning her naturally thick eyebrows, radio host Jackie O Henderson shared a throwback school picture on Instagram
Amanda Keller has also posted her school formal picture, which shows her with long, curly brown hair instead of her signature cropped blonde ‘do.
These days, the 58-year-old is one of Australia’s most recognisable and hard-working TV and radio presenters.
So different! She’s the Australian TV and radio host who found herself at the centre of an awards saga – but would you recognise her from this throwback photo taken at her formal?
Cute! Amanda Keller shared her throwback formal picture, where the signature short-haired blonde styled long curly brown locks
She’s widely recognised from her two stints on Married At First Sight.
And Elizabeth Sobinoff knew how to bring the glam from a young age, looking classically stylish in a red dress at her Year 10 formal.
Despite a change of hair colour, fans commented on the Instagram post that the 29-year-old’s smile hasn’t changed at all.
Guess who! This Australian TV star is hardly recognisable in a Year 10 throwback snap
Pearly whites! Fans commented on the Instagram post that the Elizabeth’s smile hadn’t changed at all over the years
Liam Hemsworth wasn’t always the Hollywood hunk he is today.
The 30-year-old actor was once a laid-back beach boy with sun-bleached curly hair.
He has transformed since his awkward teenage years, but he’s still a surfer at heart.
Transformation! The 30-year-old actor was once just a laid-back beach boy with sun-bleached curly hair. He’s transformed since his awkward teenage years, but he’s still a surfer at heart
Meanwhile, Hugh Jackman always looked every inch the ladies’ man he is today.
With a female friend gazing fondly up at him in the throwback picture, Hugh oozed confidence in a tuxedo and blue bow-tie.
‘Lesson number 374 and 375 from my dad: “Always be a gentleman” and “Never, ever kiss and tell,”‘ Hugh wrote on Instagram in 2016.
Ladies man: With a young girl gazing fondly up at him in the throwback picture, Hugh looked effortlessly cool in a tuxedo and blue bow-tie
Another successful Australian acting export, the glamourous Margot Robbie, looks unrecognisable in her throwback.
Margot was pictured at just 13 years old with braces while reading Harry Potter and the Order of the Phoenix.
After the photo resurfaced by U.S. talk show host Jimmy Kimmel, Margot admitted: ‘I lied to get glasses so I could look like Harry Potter.’
Unrecognisable! After being exposed on late night talk show Jimmy Kimmel, Margot admitted: ‘I lied to get glasses, so I could look like Harry Potter’
Glamourous: Another successful Australian acting export, Margot Robbie was unrecognisable in her throwback
Social media mogul Tammy Hembrow was bound to have some old photos shared, with four siblings ready to embarrass their Instagram-famous sister.
Each time the Hembrows share a throwback picture of Tammy, the Internet goes into meltdown.
And it’s easy to see why, given that her appearance has changed so much over the years.
Guess who! She’s a tabloid figure who has made millions from Instagram – but would you recognise her in her younger years?
Completely different! Each time the Hembrows share a throwback picture of Tammy, the internet goes into meltdown
Larry Emdur took a trip down memory last year by sharing a throwback photo to Instagram of his younger years growing up in Bondi.
The Channel Seven star appears to be concentrating on looping a thread through a needle in the photo, which was seemingly taken in Larry’s early teens.
‘Back when I had Jedi-like focus and a bizarre love of sewing… It was an adorable combination,’ he wrote in the caption.
Who could it be? He is one of Australia’s best known TV stars – but would you recognise this freckled little boy from his childhood snap?
It was clear from early on that Rebecca Judd would always be a style icon.
The footy WAG once shared a throwback picture of herself as a teenager wearing a triangular tube top, red maxi skirt and trendy choker.
The budding fashionista accessorised with elbow-length gloves.
Fashionista! It was clear from the star WAG Rebecca Judd would always be a style icon
Spunky: The Jaggad brand owner shared a throwback picture of herself as a young teen donning a triangular tube top, red low-waist maxi skirt and a trendy choker
Matty Johnson recently had one of his high school photos exposed by his fiancé, Laura Byrne, whom he met on The Bachelor ion 2017.
‘Happy Valentine’s Day to this stud. Puberty was good to you my love,’ Laura wrote on Instagram in February.
With spiked hair and an oversized collar, Matty looked completely different from the handsome TV personality he is today.
‘Puberty was good to you’: Matty ‘J’ Johnson was exposed by his partner Laura Byrne, who he met during his stint on The Bachelor
Former Biggest Loser trainer Tiffiny Hall hasn’t changed much over the years.
The fitness guru recently shared an inspirational message on Instagram alongside her high school photo, writing: ‘You know how they say it gets better? It sure does!
‘I was so passionate in school and had such incredible support from my teachers. I didn’t realise at the time how important that was, but I feel so grateful now for where it has got me in life.’
‘You know how they say it gets better? It sure does!’ Former Biggest Loser trainer Tiffiny Hall looked practically identical to the blonde bombshell she is today
Zoë Foster-Blake isn’t shy about her somewhat geeky past in the 1990s.
The biggest difference between the Zoë of today and her former self is her hair, which she styled with ‘homemade balayage’ as a teenager.
Nowadays, she has much shorter and more sophisticated hair.
Unrecognisable: Zoe Foster-Blake is never shy about her somewhat geeky past as an everyday teenager just trying to navigate the angsty 1990s