GALLERY: The best celebrity throwback photos
They look so young!
Throwback photos can cause serious embarrassment! Whether you regret a hairstyle or a fashion choice, they are most certainly a hilarious reminder of how cool (or uncool) you were in your youth. While you cringe as your Timehop brings up some photos from your past, don't panic! Even some of the biggest celebs have funny throwback snaps!
We found a selection of amazing throwbacks from music stars such as Justin Timberlake, Harry Styles, Ariana Grande, Ed Sheeran, Adele and many more!
Britney Spears
She's 38 now, but back in 1998 Britney Spears was preparing to drop her massive hit 'Hit Me Baby One More Time'.
Cheryl Tweedy
Cheryl Tweedy looked very different before she found fame with girl group Girls Aloud on Popstars: The Rivals.
Beyoncé
Beyoncé rocked some very cool sunglasses back in 2000.
Calvin Harris
Scottish DJ Calvin Harris has undergone a MASSIVE image overhaul since he dropped his first hits in 2007.
Ariana Grande
It's hard to believe but the young girl in this photo blossomed into the stunning Ariana Grande.
Demi Lovato
Before making it big in the music industry, Demi Lovato was a massive Disney star.
Harry Styles
Cheeky chappy Harry Styles in his early One Direction days. Who can forget that hair?!
Justin Bieber
A baby-faced Justin Bieber back in 2008!
Justin Timberlake
The coolest of throwbacks from Mr JT.
Adele
Adele shot to worldwide fame after dropping her debut single 'Chasing Pavements' in 2008.
Liam Payne
Before becoming a daddy to baby Bear, One Direction's Liam Payne rocked some questionable hairstyles.
Katy Perry
'I Kissed A Girl' singer Katy Perry looked completely unrecognisable compared to her current look.
P!NK
She's had a number of amazing hairstyles over the years, but this throwback of P!NK is definitely up there with the best!
Niall Horan
Here is Irish heartthrob Niall Horan during his days on The X Factor with One Direction.
Rihanna
A very youthful-looking Rihanna in 2006.
Little Mix
Here are Jade Thirlwall, Jesy Nelson, Leigh-Anne Pinnock and Perrie Edwards back in 2011 when they first joined Little Mix.
Ed Sheeran
The lovely Ed Sheeran back in 2011, before he turned into a MEGA pop star around the world.
Zayn Malik
Zayn Malik looking very pleased with himself as he's surrounded by One Direction fans in 2010.
Taylor Swift
Taylor Swift embraced her country roots back in 2007.
One Direction and Olly Murs
Olly Murs uploaded this photo to his Instagram page with One Direction stars Louis Tomlinson, Liam Payne and Niall Horan, all looking very young in 2012.
You can hear hits from these HUGE artists on the Cool FM playlist.