But even before they made the big time, Kourtney, Kim and Khloe were already brimming with confidence.
On Thursday Khloe shared a photo on her blog of herself and her two sisters during one of their first photo shoots together.
Flashback: Khloe Kardashian shared a photo of herself with sisters Kourtney and Kim from one of their first photo shoots together five years ago
Khloe towers over her siblings in the photo, with her brunette locks styled in wild curls.
Meanwhile Kourtney and Kim could pass for twins with their tresses in bold retro bouffant ‘dos.
Their star has risen: A lot has changed for the sister act, seen together in November, since that photo was taken
And Khloe, 28, matches her 33-year-old sister’s ensemble in a cream one-piece which also boasts a pink trim.
Kim, 32, stands in the centre in a white bikini, but covers up her stomach in a translucent gold sarong.
Jet setters: Kim and Kourtney were seen on Thursday preparing to head out of town with Kourtney's children in tow
What a cutie: It looks like Kourtney is trying to pass down her style tips to daughter Penelope, who is six months old
Khloe was feeling nostalgic as she posted the image as part of Throwback Thursday, where people share vintage snaps online.
She wrote alongside the snap: ‘This pic is from one of the first photo shoots my sisters and I ever did together — I think it was about five years ago.
Feeling nostalgic: Khloe shared the old photo as part of Throwback Thursday and admitted she still loves their looks in the image
The day before Khloe lashed out at tabloids who printed reports this week that she has split from husband Lamar Odom and that Robert Kardashian is not her biological father.
'It is a complete waste of time to address these reports every time they print these ridiculous and absurd tabloid stories,' she wrote on her blog. 'But not only are these stories untrue, they’re also unfair to the people who buy the magazines expecting to read accurate reports.'
Lashing out: The day before Khloe slammed tabloid that reported that she and husband Lamar Odom have split and that Robert Kardashian is not her biological father