1. Britney Spears kicked things off with this picture for her "Slave 4 U" music video, which inspired straight boy fantasies and gay boy dance moves:
2. Reese Witherspoon took us back to the '90s with this picture (TBH, I thought it was her daughter/lookalike Ava for a moment):
#TBT to 90’s vibes ! ❤️ #QueenOfHearts
3. The timeless Jane Fonda shared a shot from her film "Hurry Sundown" (digging the hat, Jane!):
4. Everything about Kirsten Dunst's Fifteen and Pregnant throwback is AMAZING, but I'm particularly here for the glamour shot lighting:
5. Naomi Campbell served us LEWKS and FIERCENESS honey in her black-and-white ~FASHUN~ throwback:
6. Orlando Bloom tossed it back to the time he had a cameo in a Beastie Boys music video:
7. I'm ~shewk~ at how glamazing Rosario Dawson looks in her noir throwback:
8. Legendary Diva threw it way back with this photo from her "My All" music video:
9. Luke Evans wished his nephew a happy birthday with this adorbs throwback:
10. Susan Sarandon shared this shot from her movie The Front Page with Walter Matthau:
With Walter Matthau - one of the sweetest, funniest men ever - in Billy Wilder’s The Front Page. #TBT https://t.co/kzTBddYWwr https://t.co/R4tLP2Ndpg
11. Lots of black and white this week...Barbra Streisand shared this set photo from her movie Yentl:
Directing a scene on the set of #Yentl with Mandy Patinkin and Amy Irving in Europe. 1982. #tbt
12. Tegan and Sara reminded us about the time they met Metallica:
Chilling with @Metallica. NBD. #TBT
13. And finally, Viola Davis motivated us with this precious throwback, complete with an inspirational caption:
Be yourself, everyone else is taken. What advice would you give your younger self? #TBT