Britney Spears, Meghan Trainor, and More Stars Who Are Way Younger Than You Think

Julianne Hough: 28

Although she's been rocking a more au naturale look these days, many fans still think she looks older than her age.

Britney Spears: 35

Her 2007 public meltdown has really taken a toll on her look.

Courtney Stodden: 22

Maybe her mature look is because she used to be married to a man who was in his 50s!

Lorde: 20

The New Zealand pop star has a maturity in her music that also reflects her appearance.

Meghan Trainor: 23

However, she doesn't care about looking "unconventionally" beautiful. "When I got signed as a songwriter, I immediately thought, 'Oh, no one sees me as an artist because I don't look good enough.'" she said. "So I shut down the whole idea."

Kate Upton: 24

Most fans are shocked to learn the model is still in her early 20s.

Margot Robbie: 26

The Suicide Squad actress' age is so controversial, fans accused her of lying about her age!

Pippa Middleton: 33

Although she's Kate Middleton's younger sister, fans often confuse her with being the older one.

LeBron James: 32

It's hard to believe he's accomplished so much in such a short amount of time.

Willow Smith: 16

Is it just us, or does it feel like she's been 16 for four years now?

Adele: 29

Although Adele has the type of maturity most exhibited by 30-year-olds, she's still in her 20s.

Ali Lohan: 23

Although Ali has denied plastic surgery, fans noticed her face started looking very different over the past few years, resulting in a more mature look.

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