1. Awww, John Krasinski posted this adorable baby pic of himself.
2. Speaking of adorable, check out Nico Tortorella as young tough bad boy.
3. Salma Hayek shared this impressive photo from her gymnastic days.
4. Carole King shared this photo from the photo shoot for her iconic album, Tapestry.
#ThrowbackThursday Photo: Jim McCrary Courtesy Lou Adler & @oderecords
5. Michelle Trachtenberg posted this pic of her and Kelly Osbourne in the early '00s.
6. Naomi Campbell shared this fierce '90s modeling pic.
7. Also feeling the '90s was Mariah Carey, who shared this pic.
8. Scream Queen's Diego Boneta remembered when Hilary Duff guest starred on his former TV series, the classic Mexican teen soap opera Rebelde.
9. And finally, Kris Jenner shared this cute '80s pic of herself with her two ski bunnies, Kourtney and Kim Kardashian.
My little ski bunnies!! #TBT @kourtneykardash @kimkardashian