1. Selena Gomez shared this photo of her (doppelgänger) mom holding her as a baby.
2. Green Day took it back to the early '90s with their photo.
#TBT from @OaklandCoffee
3. Jennifer Love Hewitt celebrated the 20th anniversary of her classic horror movie, I Know What You Did Last Summer, by posting the poster.
4. Nico Tortorella shared this teenage photo of himself cuddling a puppy.
5. Nick Kroll posted this tween photo of himself enjoying a burger and fries.
#TBT perhaps the first @bigmouth promotional pic.
