By Rita Kokshanian
Updated: May 20, 2015 @ 10:41 am

It was an action-packed weekend for celebrities, and they proved it with their Instagram snaps. Britney Spears posted a too-cute photo of herself (clad in a bikini) splashing in the waves in Hawaii with her two sons, Jayden and Sean, while Demi Lovato also shared a sweet photo of herself enjoying the sunny weather with her puppy while wearing a two-piece. Meanwhile, Justin Bieber goofed around with Kourtney Kardashian’s son Mason, while Rihanna watched her new movie Home front-row in a theater. See these and more of our favorite Instagrams from the weekend below: 

Demi Lovato:


A photo posted by Demi Lovato (@ddlovato) on


Justin Bieber: 

Mason is cool as a fan

A photo posted by Justin Bieber (@justinbieber) on



A photo posted by badgalriri (@badgalriri) on


Michelle Obama:


Ariana Grande:


Olivia Palermo:

Thank you @maxandco for a wonderful trip, to China! Congrats on the new store! 👯💁👍💃💞

A photo posted by Olivia Palermo (@oliviapalermo) on


Mariska Hargitay:

Me and my girl

A photo posted by therealmariskahargitay (@therealmariskahargitay) on


Sofia Vergara:

Gia and her favorite uncle😍😍😍😍

A photo posted by Sofia Vergara (@sofiavergara) on


Michelle Rodriguez:

Beijing's Heavens Temple was a trip...

A photo posted by Michelle Rodriguez (@mrodofficial) on


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