Fans have kept up with Kourtney Kardashian's beauty looks ever since her family made their television debut back in 2007. We've diligently taken notes on her makeup routine [1], filed countless pictures of her glam into the favourites folder of our Instagrams in real-time, and scoured Poosh — her new lifestyle website [2] — for her favourite products.

Her hair looks are no exception, as each one has caused us to stop and stare. Over the last two decades, the reality star and entrepreneur has worn her glossy, dark hair in numerous different styles, [3] from an updo adorned with gold to high-shine, short layers. She's even surprised us with an Ariana Grande-inspired, blond ponytail.

Ahead, see Kardashian's many different hair looks from over the years.

Kourtney Kardashian in a High Ponytail 2019

Kardashian wears her hair in an architectural high ponytail by hairstylist, Andrew Fitzsimons.

Kourtney Kardashian with Glossy, Straight Hair 2018

Kardashian parts her glossy, straight hair to the right.

Kourtney Kardashian with Medium-Length Hair 2018

Kardashian's medium-length hair is wavy with a high-shine.

Kourtney Kardashian with a Deep Side Part 2018

While in attendance of a briefing in order to support the FDA regulation on personal care products, Kardashian wears her hair straight and parted to the right.

Kourtney Kardashian with a Centre Part

Kardashian pairs her marsala-coloured makeup with a deep centre hair look at an awards ceremony in 2016.

Kourtney Kardashian with Fringed Bangs 2013

High top knot and straight-across, fringed bangs complete Kardashian's look in 2013.

Kourtney Kardashian with Blond Highlights 2012

Kardashian's hair was streaked with blond highlights back in 2012.

Kourtney Kardashian with Caramel Highlights 2012

Kardashian wore her highlighted hair pushed back at an E! event in 2012.

Kourtney Kardashian with an Updo and Gold Hair Accessory 2012

Kardashian completes her wavy updo with a gold hair accessory by Alice and Olivia.

Kourtney Kardashian with Layered Short Haircut 2009

We'll never forget Kardashian's glossy, short layered haircut from back in 2009.

Kourtney Kardashian with Loose Waves 2009

Complete with light-catching highlights, Kardashian's loose waves framed her face perfectly.

Kourtney Kardashian with Cascading Waves 2008

Kardashian's long, cascading waves, took on many red carpets in 2008.