Marc Jacobs Makeup, The Royal Baby And More Instagrams Of The Week (PHOTOS)

This week on Instagram, it was all about great "Throwback Thursday" photos. Between Rodarte's pic of the adorable Elle Fanning a few years ago, Alessandra Ambrosio's cute snapshot of herself as a child and a look back at Kate Moss rocking pink hair, the fashion industry was in a pretty nostalgic mood.

Being the Instagram fiends we are, we've decided to round up a few of our favorite snaps of the week. Click through the slideshow to see a precious photo of the royal baby and a peek at Marc Jacobs' Sephora makeup collection.

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