This week, Justin Timberlake has some fun at the Australia zoo, Demi Lovato shows off her backside and Jessica Simpson's hubby Eric Johnson plays with their baby boy Ace in the pool!
VIDEOS: Jessica Simpson Says Weight Criticism "Hurt," Reveals Marriage Has Changed Her!
And, James Franco parties with some film school students, Kylie Jenner posts another super revealing snap and Selena Gomez goes glam in her latest selfie.
Plus, Kathy Griffin has a really bad hair day, Lauren Conrad shares one gorgeous shot from her honeymoon with new hubby William Tell and Jennifer Lopez posts a photo of her "minime" daughter, Emme!
Click "Launch Gallery" above to see these stars' personal pics and even more celeb candids in this week's best celebrity TwitPics!
