Beyonce simply titled this throwback picture "1989". Photo: Instagram
Kim Kardashian: "#TBT [Kourtney Kardashian] & I 1981" Photo: Instagram
Cara Delevingne: "Little GREEBLING #takemeback #fatherchrimbo". Photo: Instagram
Hilary Duff: "#tbt Wendy the "good witch" love that the internet has most of my past documented (actually I don't like it allll the time") Photo: Instagram
Heidi Klum: "Photo blast from the past: I wish every day was top down weather!" Photo: Instagram
January Jones: "#tbt to the first time I was in Italian Vogue about 15yrs ago. Shot on the banks of the lovely LA river by #StevenMeisel. " Photo: Instagram
Jessica Alba: "#tbt to when I used to be #jessicamariealba #skinnyeyebrows #thenewadventuresofflipper #90s". Photo: Instagram
Kendall Jenner: "#tbt me and KhloMoney back in the day" Photo: Instagram
Alessandra Ambrosio regrammed this picture from Guess, of a 1999 Hawaii shoot. Photo: Instagram
Kourtney Kardashian: "Me and my Papa Harry." Photo: Instagram
Miranda Kerr proves she was just as gorgeous as a toddler, in this throwback Thursday shot. Photo: Instagram
Lindsay Lohan: "#tbt #jasmine #Disney" Photo: Instagram
Michelle Obama: "Let's dance! #LetsMove #TBT #ThrowbackThursday" Photo: Instagram
Miley Cyrus looks beyond cute in this uncaptioned #tbt photograph Photo: Instagram
Paris Hilton threw back to a <i>Simple Life</i> Maxim Magazine shoot. Photo: Instagram
Gisele Bundchen: "Ready to the show..How about the hairdo??" Photo: @giseleofficial via Instagram
Jessica Alba looking cute in her blouse and bangs. Photo: @jessicaalba/Instagram
Ellen: Happy #ThrowbackThursday! Today I'm throwing all the way back. Photo: @theellenshow/Instagram
Amanda Seyfried: "Throwback to 3rd grade and vest." Photo: @mingey/Instagram
Lindsay Lohan: #tbt #jasmine #Disney Photo: lindsaylohan/Instagram
Miley Cyrus posted a flashback picture on Instagram of her younger self wearing a T-shirt with her adult face on it. Photo: mileycyrus/Instagram
Taylor Swift: "Celebrating this Mother's Day, reflecting back on past matching velvet holiday ensembles." Photo: @taylorswift/Instagram
Kate Upton: "I remember the days I had to do my own hair before a swimsuit shoot. #tbt" Photo: @kateupton via Instagram
Kim Kardashian: "#ThrowbackThursday @nicolerichie and I being oh so cool at 13 years old." Photo: @kimkardashian/Instagram
Sarah Hyland: "#tbt to when I had the coolest overalls known to man and could've maybe taken a few lessons from @allanface about blush...." Photo: @therealsarahhyland/Instagram
Cindy Crawford: "A "little" Cindy for #tbt!" Photo: @cindycrawford/Instagram
Reese Witherspoon: "Because what Southern girl doesn't love a John Deere tractor.. #TBT" Photo: @reesewitherspoon/Instagram
Amy Schumer: "Oh hi there #TBT #newkids" Photo: @amyschumer/Twitter
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