1.Justin Bieber shared this way too adorable photo of himself and his little sister, Jazzy, in the early '10s:
2.Paris Hilton celebrated National Ice Cream Day by posting this clip of this iconic moment from The Simple Life:
3.Michelle Visage shared this photo of herself and Anna Nicole Smith in 1998, when Anna Nicole was a guest on The RuPaul Show:
4.Nicole Kidman celebrated the 22nd anniversary of Eyes Wide Shut — which was also the legendary director Stanley Kubrick's final film — by sharing this classic smile moment from it:
5.Cindy Crawford was in an Olympics mood and posted these pics of herself taken for a "Going for Gold"–themed photo shoot for British Vogue in 1987:
6.Kelly Rowland celebrated the 10th anniversary of her boptastic album Here I Am:
7.Martha Stewart remembered when she guest-starred on Law & Order: SVU in 2012:
8.While Keith Richards remembered when he and the Rolling Stones appeared on the short-lived ABC TV show The Music Scene in 1969:
9.Elizabeth Banks shared this photo of herself in the late '90s:
10.In honor of her mother Bebe Buell's 68th birthday, Liv Tyler posted this sweet photo of the two of them in the pool in the late '70s:
11.Mark Ruffalo celebrated Benedict Cumberbatch's 45th birthday by sharing this photo he took of him in 2018, during the Marvel Class Photo photo shoot:
12.Sofía Vergara posted this video of herself in the '90s performing at Carnaval Miami:
13.Nick Jonas celebrated his and Priyanka Chopra's third-year anniversary of their engagement by sharing this photo from when they got engaged:
14.Mike D remembered the late Biz Markie (who died last week at age 57) by sharing this photo of Biz visiting the Beastie Boys in the studio:
15.And lastly, Will Smith also paid tribute to his longtime friend Biz Markie by sharing this photo of the two of them, as well as a clip of him playing the Beatbox Alien in Men in Black II: