1.Jennifer Aniston both announced and celebrated the news that the Friends reunion was officially a go on HBO Max by sharing this photo of the cast that was taken for Rolling Stone magazine in 1995:
2.While Brooke Shields remembered her memorable appearance on Friends in 1996:
3.Troye Sivan shared this too cute photo of himself at his bar mitzvah in 2008:
4.Kerry Washington posted this photo of herself from her graduation day from George Washington University in 1998:
5.Rashida Jones celebrated her 44th birthday by paying tribute to her late mother, Peggy Lipton:
6.Paul McCartney remembered George Harrison on what would have been his 76th birthday:
7.Jamie Lee Curtis shared these photos of herself as a baby, while being held by her dad, Tony Curtis:
8.Jackée Harry celebrated "227 Day" by posting this compilation video of her 227 character, Sandra, iconically saying "Maaaary":
9.Dolly Parton shared this photo of herself sporting a beehive in the '60s:
10.Mandy Moore posted this photo of herself sporting a home haircut in the late '80s:
11.Tegan and Sara shared this photo of themselves in the mid-'90s:
12.Sarah Michelle Gellar posted this compilation video of Buffy doing some slay-worthy hair flips:
13.Natalie Portman shared this way adorable photo of herself at 3 years old in 1984:
14.Luke Evans posted this photo of himself as a baby in 1979:
15.And finally, in honor of Chelsea Clinton's 40th birthday, Hillary shared this photo of herself and Bill holding her as an infant in 1980: