1. In honor of the Oscars, Madonna shared this photo of when she and Michael Jackson attended the ceremony together in 1991.
2. Anne Hathaway kept the Oscars memories theme going by posting this photo of when she won Best Supporting Actress in 2013.
3. Naomi Campbell remembered when she and fellow supermodel Claudia Schiffer presented Best Costume, alongside Pierce Brosnan, at the 1996 Academy Awards.
4. Orlando Bloom posted this pensive shot from the '00s.
5. Joan Collins shared this very '80s photo of Andy Warhol showing her Polaroids of a painting he had done of her.
6. Joseph Gordon-Levitt posted this photo of himself hanging out with Zooey Deschanel and his friend Michael in the early '00s.
7. In honor of what would have been singer and activist Miriam Makeba's 86th birthday, Iman posted this photo of herself and her late husband, David Bowie, hanging out in South Africa in 1995.
8. Connie Britton (right) celebrated her 50th birthday by posting this photo of her and her twin sister, Cynthia, looking stylish in the '70s.
9. U2 remembered when they were named "Band of the '80s" by Rolling Stone magazine in 1985.
10. Britney Spears remembered when she performed alongside Aerosmith during the Super Bowl halftime show in 2001.
11. Blondie posted this NME cover from 1979, in response to the magazine ending its print publication.
12. Lin-Manuel Miranda wished everyone a good morning with this adorable photo of himself.
Good morning. Dubious. But doing this.