Justin Bieber shared this cute childhood photo of him and his mom.
Hugh Jackman posted a very dapper photo of himself.
Sofia Vergara took it back to the filming of the very first episode of Modern Family.
Sheryl Crow shared a video of her and Michael Jackson duetting live to his hit, “I Just Can’t Stop Loving You.”
David Beckham posted this photo of his dad holding him as a baby — in honor of his father’s birthday.
Elton John remembered his close friend Princess Diana.
Dolly Parton shared this photo of herself, Rod Stewart, and Cher hanging out together in 1978, during the filming of a Cher TV special.
Kylie posted this photo of herself hanging out with her fellow Aussie, Elle Macpherson, in the early-’90s.
Paris Hilton remembered the time she hung out with a kangaroo.
In honor of Stephanie Seymour’s birthday, Naomi Campbell shared this photo of the two of them modeling together in the early-’90s.
And finally, Mike Shinoda paid tribute to his fellow Linkin Park bandmate and friend, Chester Bennington, with this photo of the band in the late-’90s.