1. Billie Eilish and Finneas O'Connell now:
illie Eilish and Finneas O'Connell back in the day:
2. Jaden and Willow Smith now:
Jaden and Willow Smith a long time ago:
3. Khloe, Kim, and Kourtney Kardashian now:
Khloe, Kim, and Kourtney Kardashian forever ago:
4. Kylie and Kendall Jenner now:
Kylie and Kendall Jenner way back when:
5. Solange and Beyoncé now:
Solange and Beyoncé long ago:
6. Chloe, Cara, and Poppy Delevingne now:
Chloe, Cara, and Poppy Delevingne as kids:
7. The Jonas Brothers now:
The Jonas Brothers years ago:
8. Serena and Venus Williams now:
Serena and Venus Williams as kids:
9. Ashlee and Jessica Simpson now:
Ashlee and Jessica Simpson in the old days:
10. Frankie and Ariana Grande now:
Frankie and Ariana Grande then:
#TBT to when @ArianaGrande was Dorothy, @joangrande played the wicked witch's sista & I was in the middle of puberty.
11. Bella and Gigi Hadid now:
Bella and Gigi Hadid some time ago:
12. Cole and Dylan Sprouse now:
Cole and Dylan Sprouse in the past:
13. Tamera and Tia Mowry now:
Tamera and Tia Mowry eons ago:
14. Miley and Noah Cyrus now:
Miley and Noah Cyrus many years ago:
15. Aly and AJ now:
Aly and AJ back in the day:
#tbt
16. Chris and Liam Hemsworth now:
Chris and Liam Hemsworth back then:
17. Paris and Nicky Hilton now:
Paris and Nicky Hilton then:
18. Mary-Kate, Ashley, and Elizabeth Olsen now:
Mary-Kate, Ashley, and Elizabeth Olsen back then:
19. Zooey and Emily Deschanel now:
Zooey and Emily Deschanel years ago:
20. Britney and Jamie Lynn Spears now:
Britney and Jamie Lynn Spears then:
21. Hilary and Haylie Duff now:
Hilary and Haylie Duff long ago:
22. Tracee Ellis Ross and Evan Ross now:
Tracee Ellis Ross and Evan Ross decades ago:
23. Jake and Maggie Gyllenhaal now:
Jake and Maggie Gyllenhaal ages ago:
24. John and Joan Cusack now:
John and Joan Cusack a loooong time ago:
25. Prince William and Harry now:
Prince William and Harry a long time ago:
26. Raini and Rico Rodriguez now:
Raini and Rico Rodriguez way back when:
27. Nicole and Sofia Richie now:
Nicole and Sofia Richie then:
28. Jessica and Joshua Alba now:
Jessica and Joshua Alba way back when:
29. Alec, Daniel, Stephen, and William Baldwin now:
Alec, Daniel, Stephen, and William Baldwin back in the day:
30. Julianne and Derek Hough now:
Julianne and Derek Hough back then:
31. Chad and Rob Lowe now:
Chad and Rob Lowe in days past:
