1.In celebration of her Friends costar, Matthew Perry, finally joining Instagram, Jennifer Aniston shared this photo of the two of them in the late '90s:
2.In honor of Michael B. Jordan's 33rd birthday, Lupita Nyong'o posted this photo of the two of them on the blue carpet of the Independent Spirit Awards in 2014:
3.Tan France shared this photo of him and his fellow Queer Eye castmates from 2018:
4.In celebration of this past Sunday's Oscars, Mark Ruffalo posted this photo of himself and his wife, Sunrise Coigney, attending the ceremony in 2011:
5.Ronan Farrow shared these cute photos of himself holding a bunny in the 2000s:
6.Mandy Moore shared this clip of herself being interviewed by Access Hollywood in 1999:
7.In honor of Galentine's Day, Dolly Parton shared this photo of herself with BFFs Emmylou Harris and Linda Ronstadt in 1987:
8.While Michelle Obama shared this photo of herself and her friends at an '80s-themed workout class in honor of Galentine's Day:
9.Hello, gorgeous! Barbra Streisand posted this stunning photo of herself taken by legendary photographer Richard Avedon for Vogue in 1970:
10.Marlo Thomas shared this photo from when she married Phil Donahue in 1980:
11.Adam Sandler celebrated the 25th anniversary of Billy Madison by sharing this photo from the film:
12.And finally, Naomi Campbell remembered Whitney Houston on the eighth anniversary of her death by sharing this photo of the two of them at a party in Paris in 1999: