This week, Aubrey O'Day shows off her perky booty in the name of world peace, Neil Patrick Harris enjoys his last day on vacation with a margarita challenge and Kylie Jenner cuts off her long locks!
Also, Kelly Osbourne does some graffiti art with Justin Bieber amid her breakup from fiance Matthew Mosshart, Jessica Alba poses under one giant boulder and Hilary Duff is back in the studio.
And, Brandi Glanville adopts a new puppy, Miley Cyrus spends some time with her "wifey" and Katy Perry gets one nasty bug bite ... on her face!
Click "Launch Gallery" above to see these stars personal pics and even more celeb candids in this week's best celebrity TwitPics!
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