Guess Who

Before this cool lil' guy in his red collared tee was up on the big screen, he was just sneaking into theaters with his friends, growing up in Dublin, Ireland with his brother and dreaming of making it big in Hollywood!

Perhaps one of his breakout roles was nearly a decade ago on the Irish drama series "Love/Hate," but he's been in a handful of several big films like "Saltburn" where he showed off his bare buns and danced the night away!

Need one more hint? Maybe it's that "sweet espresso" ...

Hidden underneath this smooshed-up star is a SoCal hottie known for being popular in the summer! Time to put your celeb thinking cap on and see if you can score the unknown celebrity!

Her breakout role came on television in the early 2000s alongside Mischa Barton and her on-screen BF, "Seth Cohen" ... She would later get her last kiss from Zach Braff and star in "Hart of Dixie."

When she's not workin' it on the 'gram and showing her spunky side on her podcast, she's a doting mother to her daughter!

Before this cute gal with blunt bangs from Hilton Head, South Carolina turned into a reality tv star and podcaster, she was just hittin' the beaches down south with her siblings and growing up with a famous father ...

Given her pops is in the Rock N' Roll Hall of Fame, she had a leg up into the spotlight, but this gal with the rockin' bod has made a name for herself ... She's a fitness and accountability coach, skincare advocate, and podcast host of 'Two T's In A Pod' with fellow housewife Tamra Judge.

Before this hungry kiddo enjoying a snack in her highchair was dancing and singing in high school, she was just runnin' around Cali with her younger sis and kicking off her career at just 10 years old.

This Hollywood gal has done it all! Her first acting gig was on CBS's "Still Standing." She's even released a few albums ... Perhaps you saw her pop up as a goldfish on "The Masked Singer."

But, there's no doubt her breakout role came alongside Zac Efron's rise to stardom ...

"You Are The Music In Me!"

Before this cool lil guy giving major side-eye and a smise turned into a broadcaster, he was just playing with his pet snake, Sam, and growing up with quite a famous mama (a Vanderbilt) and runnin' around the concrete jungle!

From a young age, this gent was in the media; i.e.: being photographed for Harper's Bazaar and was a guest on 'The Tonight Show' at age 3. After graduating from Yale, he worked and made his way to becoming a broadcaster on CNN.

Need one more clue? New Years even with Andy Cohen!

Can you guess which a-lister is posin' pretty and showin' off her sexy legs in this mirror selfie? Lemme tell you this ... this hot celeb opted for a pink feathered bodysuit to display her glowing stems!

Before this adorable and cool kid from Malibu was bustin' a move, he was just flexin' for the camera in his red bucket hat and red underwear and skatin' around town while growin' up in the Hollywood spotlight.

During his childhood, he looked up to Kid Cudi, Kurt Cobain and even his famous father. Never Say Never, because he's definitely tight with other big stars like Justin Bieber -- who he collab'd on a song with, but he's also been up on the big screen and showcasing his martial arts skills alongside Jackie Chan.

Before this blonde hair blue-eyed baby boy was throwin' his charming looks up on the big screen, he was just an Aussie boy playing tennis, kicking the soccer ball and surfing the waves with his two brothers.

In 2009, he flew across the pond to start his acting career. Perhaps you've seen him in popular films like "The Hunger Games" and "Independence Day: Resurgence," but surely these movies wont be his "Last Song."

If you've scrolled through his Instagram, you'd know he loves nature, the ocean and a great thirst trap pic!

Hidden behind this squeezed and cinched photo is a Hollywood star known for her acting skills, her beauty and hands down one of Hollywood's hippest moms! Do you think you've got what it takes to guess the unknown star?

2005 is when she first stepped into the spotlight with America Ferrera ... Today, she tends to lead a more quiet life with her famous hubby, however when in the spotlight she's quite lively! And, as of this weekend, you can watch her newest romance film "It Ends With Us."