Twitter | @frankiejfrande / @arianagrande

Celebrity Siblings When They Were Young (And How They Look Today)

Hollywood has no shortage of famous families; brothers and sisters who support one another emotionally, professionally, and everywhere in between.

Now that we're almost through the first month of the new year, I thought it might be fun to take a glimpse back.

Prepare for a heavy helping of nostalgia when you see these celebrity siblings when they were young vs. now.

Poppy and Cara Delevingne

@poppydelevingne / YouTube | Architectural Digest

Recently, Cara and Poppy moved into their brand new jungle-themed home. It's heartwarming to see that these sisters are so close that they actually choose to live with one another in adulthood.

I can't say that any of my siblings would choose to do the same.

Jaden and Willow Smith

I feel as if I've watched Willow and Jaden grow up right in front of me.

I can still remember watching Jaden's acting debut in The Pursuit of Happyness, and I'd be lying if I said I still don't catch a vibe every time I hear Willow's "Whip My Hair."

Ashlee and Jessica Simpson

@jessicasimpson / @jessicasimpson

When you think about defining moments in our collective history, most people point to things like the moon landing or the birth of the internet.

But for me, I don't think I'll ever bear witness to something as epic as seeing Ashlee Simpson li p sync on SNL.

Billie and Finneas Eilish

@billieeilish / YouTube | Variety

Finneas is the man behind the curtain. He's the composer and producer of Billie Eilish's songs.

As is plain to see from the photo on the left, these two have been the best of friends since before Billie could walk.

Bella and Gigi Hadid

@gigihadid / @bellahadid

I say this to all the parents with young children: please stop dressing your kids in the same outfit.

Seriously, it isn't cute. My mom used to do it to my brother and me all the time and it drove us mad.

Kim and Kourtney Kardashian

@kimkardashian / @kimkardashian

Judging from this photo, I'd say that the Kardashian clan is fresh from church.

I can't say that I know exactly what's happening in the picture on the right; your guess is as good as mine.

Tia and Tamera Mowry

@tiamowry / YouTube | Hallmark Channel

I grew up watching Sister, Sister, it was one of my favorite shows as a kid.

The twins are still very active in one another's lives and have been public with their feelings of isolation in the wake of COVID.

Aly and AJ

Twitter | @alyandaj / @alyandaj

I don't know why Aly and Aj look so upset in the picture on the right. Those are two incredibly awesome and fine-looking guitars they're holding in their hands.

Come on guys, play a song. Smile — be happy!

Kylie and Kendall Jenner

@kyliejenner / @kyliejenner

So I suppose the first question is why does Kendall have a purple butterfly painted on her face? Was this picture taken at a birthday party or was kiddie-Kendall just trying to express herself?

I'm going with the latter.

Noah and Miley Cyrus

@noahcyrus / YouTube | E! News

Blue eyeliner is always a bold choice, even more so when you're applying it to the face of an 11-year-old girl.

I'm guessing that this is from some sort of cheerleading competition? But I'm just grasping at straws.

The Jonas Brothers

@jonasbrothers / @jonasbrothers

Holy crap, the Jonas Brothers were dorks!

I say that with the utmost respect and only because all three have glowed up into proverbial sex symbols. Clearly, judging from the fact that they're holding lightsabers, they haven't purged all of their geeky past.

Beyoncé and Solange Knowles

Twitter | @ngozianene_ / YouTube

I was having this conversation with my fiancee just the other day, and I have to say, for the record, that I am so glad it's no longer fashionable to have wire-thin eyebrows.

I say, the bushier the better!

Venus and Serena Williams

YouTube | CNN / YouTube

Venus and Serena are special. Never again are we likely to see such fierce familial competitors in the world of professional tennis.

Just thinking about these two makes me miss watching live sports so badly. Fingers crossed that by this time next year that becomes a reality!

Cole and Dylan Sprouse

Disney / YouTube | Clevver News

When I found out that the little kid in Big Daddy was actually played by twin brothers, I was shocked. Kind of like when I learned that Lindsay Lohan wasn't a twin in The Parent Trap — only in reverse.

Mary-Kate and Ashley Olsen

Warner Bros | @vogue

I used to have the biggest crush on the Olsen twins when I was a kid. As embarrassing as it is to say I still have a large portion of their filmography on VHS.

Believe me, you haven't experienced It Takes Two until you experience it in Blu Ray.