Britney Spears and Jamie Lynn Spears teens
Britney and Jamie-Lynn Spears were the ultimate sister duo for every 90's kid.
Justin Bieber bleached hair
"Wow why did I think I was eminem and bleach my hair blonde," Justin Bieber joked.
Tyra Banks Victorias Secret Angel
Tyra Banks flashed back to her Victoria Secret days with pals like Gisele Bundchen, Alessandra Ambrosio and Adriana Lima.
Taylor Swift as a kid
Taylor Swift is officially the spitting image of her mama!
Michelle Obama college photo
Michelle Obama has officially not aged a day since college. How fab is her school photo?
Maci Bookout with baby Bentley
It's hard to believe we've seen Maci Bookout and her son Bentley grow up on TV since 2009!
Hilary and Haylie Duff as babies
There is nothing like a bond between sisters! Haylie and Hilary Duff are the perfect celebrity example with this precious pic.
Nicole Richie as a kid
Did you ever wear have to wear matching outfits with your family? Nicole Richie Instagramed this printed gem joking that she only forgives her mom for these outfits on Mother's Day.
Busy Philipps as a teenager
If Busy Philipps' 80's ball gown isn't the great thing ever, than we don't know what is.
Austin Mahone baby photo
It's crazy how time flies! Who knew this little guy would turn into the award winning Austin Mahone!
Melissa Gorga baby photo
A three-year-old Melissa Gorga was all smiles in a pretty blue checkered dress and pigtails.
Ciara as a kid
Say cheese! Singer Ciara debuted one of her school photos on Instagram and it is too cute!
Miley Cyrus and Beyonce throwback
What we would do to be, "sangggggin with Queen B" like Miley Cyrus.
Kendall Jenner with her horse
Muah! Kendall Jenner gives a sweet peck to her horse during her equestrian days.
Amanda Seyfried as a kid
Back when Amanda Seyfried was "#prepubescent."
Lindsay Lohan child model
Lindsay Lohan rocked a red, white and blue ensemble for her ad campaign with Tommy Hilfiger.
Jessica Biel as a kid
"My pigtail game was really legit," Jessica Biel shared with fans and we could not agree more.
Rachel Zoe and Rodger Berman in the 90s
Young and in love! Rachel Zoe and Rodger Berman are fashion's hottest couple.
No words can describe the greatest of this photo. Thank you Pharrell for sharing this wonder with the world.
Paris and Nicky Hilton were the prettiest Trick-or-Treaters on the block.