Britney Spears Shows Off Bikini Body on a Family Vacation, Plus More Celebrity Instagrams from the Weekend

March 30, 2015 @ 1:14 pm

By: Rita Kokshanian

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 Mar 28, 2015 at 6:35pm PDT

Justin Bieber:

Mason is cool as a fan

A photo posted by Justin Bieber (@justinbieber) on Mar 27, 2015 at 11:01pm PDT

Rihanna:

A photo posted by badgalriri (@badgalriri) on Mar 28, 2015 at 10:41am PDT

Michelle Obama:

Like the First Lady and many of you, success wasn't handed to me. I worked hard in high school, went to a public college, joined @TeachForAmerica, and accepted an unpaid internship at the @WhiteHouse that ultimately landed me a job. Now I work for the First Lady, and it's an incredible honor to work for someone who continues to inspire me each and every day. It's amazing what you can do when you are determined to #ReachHigher! #BlackGirlsRock -Kristin

A photo posted by First Lady Michelle Obama (@michelleobama) on Mar 28, 2015 at 6:04pm PDT

Ariana Grande:

thanks to my friend @cashmerecat for bringing me out today at ultra

A photo posted by Ariana Grande (@arianagrande) on Mar 29, 2015 at 6:55pm PDT

Olivia Palermo:

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

A photo posted by Olivia Palermo (@oliviapalermo) on Mar 29, 2015 at 1:00pm PDT

Mariska Hargitay: