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Before this cheerful little boy with a big bright smile was spitting raps, he was just another active young kid with big dreams from Santa Monica, California.

Need another clue? 2015 was the year for this applauding baby in the yellow bib ... a year of playing no games and counting your blessings. He's even celebrating his birthday today and has now completed 34 laps around the sun as a big musician.

Bounce on in and see if you have what it takes to guess who this smiling baby is in the cute throwback!

Canadian-American actor Harland Williams was in his mid-30s when he blazed the role of Kenny Davis -- the high school teacher who goes to jail after accidentally killing a cop's horse -- in the classic stoner comedy "Half Baked."

Also featured in the film were actors Dave Chappelle playing Sir Smoke-a-Lot, Jim Breuer as Brian, and Guillermo Díaz as Scarface. Other notable stars included Snoop Dogg, Stephen Baldwin and Jon Stewart.

24 years later, Harland continues to bring the laughs with his stand-up comedy and his wacky IG antics ... like taking his Instagram followers on his shopping trips to IKEA.

Before this little girl with pigtails was cutting her teeth in the entertainment biz as a soap actor, she was just a typical happy gal taking a bite out of Stratford, New Jersey.

After marrying one of Hollywood's hottest soap studs, she and her hunk of a husband often co-host together on a morning talk show and talk about how much they embarrass their 3 children.

This bubbly girl with iconic big cheeks and deep dimples is well known for discussing her very public life and enjoys spending her free time with her loved ones in the Hamptons.

Australian actress and model Ruby Rose intrigued us all when she was locked up on the crazy popular prison show as the side-shaved Stella Carlin for season 3 of Netflix's hit show "Orange Is the New Black" back in 2015.

She shared the screen with lead actress Taylor Schilling who played the poorly adjusting inmate, Piper Chapman and Laverne Cox as the salon boss, Sophia Burset.

Rose was also an MTV Australia presenter and co-hosted "Australia's Next Top Model" in 2009 as well as "The Project" until 2011.

Today Ruby enjoys lounging around and hanging with her fur-babies.

Before this Indiana baby grew into a comedic legend and worked with A-listers like Will Ferrell, she was just another happy baby from Indiana.

The actress is best know for playing a receptionist in a popular sitcom, which lasted for 9 seasons. Fun fact: she worked as a receptionist as she navigated her way to stardom. Looking so glorious, the baby dressed in white also worked on a movie with Napoleon Dynamite, played by Jon Heder.

Ashley Tisdale's look over the years is exactly what "I've We've Been Looking For!"

Here's a 17-year-old version of the New Jersey-born actress at an 'MY - TEE Summer Soiree' Hosted by actress Brittany Snow back in 2003. This was just years before she would star in Disney's iconic "High School Musical" and "The Suite Life of Zack & Cody" (left).

And, 19 years later ... the now 36-year-old mom may have switched her youthful smile to a mature smize, but that hasn't diverted her love and passion for health and beauty -- as she now has her own beauty company called Frenshe.

"We're All in This Together!"

The question is ...

Under this smooshed celeb face lies a tanned man from the East Coast, and now it's up to your discretion to guess who the diamond-studded star is.

The reality star has been on television for over a decade and has been making his special 'juice' for even longer. His fresh, crisp white T-shirt just came out of the wash, as laundry is one of his favorite pastimes. Need one more clue on who this may be ... just think of 'beating up the beat.'

You don't have to be a true All-Star to locate your opponent's jersey on the court ... Take a seat on the bench, squirt your water bottle into your mouth and see if you can spot out the differences in these similar shots of Queen Latifah.

The Grammy winner and actress was spotted on set in New York City for her new movie "The Equalizer," and now the ball has been passed off to you. Do you have the agility to figure out what changes have been made to the photos of the QUEEN?

Identical twins Brent and Shane Kinsman were 5 years old when they ran across our screens while playing Kyle and Nigel Baker -- a boisterous set of twins who made up two of the dozen Baker children in the 2003 film 'Cheaper By The Dozen.'

The OG family comedy was packed with big named stars including Hilary Duff, Steve Martin, Bonnie Hunt, Dax Shepard and Ashton Kutcher were also cast in the movie.

Recently graduating from college, The Kinsman twins are now 24 years old and have plans to step back in front of the camera soon.

Actor Samm Levine was just 19 years old when he shot "Not Another Teen Movie" -- starring as the Asian-influenced character Bruce -- a high school freshman who is parodying Jim Levenstein from 'American Pie' and Daniel LaRusso from 'The Karate Kid.'

Samm shared this iconic role with Cody McMains who played the little brother of Chyler Leigh AKA Janey Briggs, as well as A-lister Chris Evans, the high school jock who falls in love with the nerdy-hot girl -- a parody on "She's All That."

21 years later, Levine recently celebrated his 40th birthday.

Before this young girl in pink created a global empire with a career in fashion and music, she was just a happy kid taking pictures with her mom and younger sister in England.

Touring around the world as a musical artist, she somehow managed to meet and marry one of People Magazine's 'Sexiest Men Alive.' You can find her products at any local mall, but it will cost you a pretty penny.

While this trendy gal with a great, big smile is most known for her singing and dance moves, she's also a busy mom with 4 kids.

American actress Kristanna Loken was 23 years old when she landed her breakout role in "Terminator 3: Rise of The Machines" -- where she played the killer 'T-X' ... a powerful and strong cyborg with a form-fitting figure.

Playing such an adventurous and strenuous role in the 'Terminator' franchise, the actress' workout regimen included a stationary bike, aerobics and intense strength training.

Today, Loken still leads an active lifestyle ... the sporty actress enjoys Superkombat fighting, and when she prefers to be low-key, a horse trek on the mountain tops will suffice!

Kristanna Loken also starred as Jane Vasco in "Painkiller Jane" and played Rayne in "BloodRayne."

Before this daring youngster started her personal journey in the world of entertainment, she often watched her father take the spotlight as a country singer.

Her roaring, yellow firefighter ensemble is quite reminiscent of a yellow dress once worn in her movies. You probably saw her bright smile in a Campbell's soup or Cabbage Patch Kids commercial back in the '90s.

Luann de Lesseps' striking looks have us saying, "money CAN buy you class!"

Here's a 41-year-old version of the countess back in 2006 hanging out backstage at New York Fashion Week (left). This was two years before Luann snatched her 'apple' and became a leading cast member of "The Real Housewives of New York City."

And, 15 years later ... the now 56-year-old ex-countess is still making a splash, she recently posted a shot as she prepares for her next cabaret tour which kicks off next month (right).

To think her iconic mug shot went viral just five years ago ... she has come a long way! "Feelin Jovani?" ... absolutely!

But, the real question here is ...

Hidden under this smooshed face is a scramble celeb who definitely knows how to work a camera.

She may have clothes on in this picture, but that hasn't stopped you from seeing her nude hot shots ... with blurred lines of course.

And, don't let this distorted picture take away from her iconic magazine covers, which include Vogue, Harper's Bazaar and Paper Magazine.

If the skewed eyebrows are still throwing you off, think back to when she told her followers just exactly how she goes about tweaking her brows.

Today marks the day of daylight saving time ... a time for celebrities like Eva Longoria, Alex Rodriguez, and Busy Philipps to take on new heights as they bounce their way to the top!

If you follow Eva on Instagram you know she deserves the 10.0 for best jumps, and based on the picture ... a stellar score for her cheeky tramp attire.