Olympic fever has officially taken over the world ... including Twitter!

See personal shots from all of your favorite Olympians in London, including Ryan Lochte, Michael Phelps and the gold-medalist US Women's Gymnastics team -- Gabby Douglas, Aly Rasiman, Jordyn Wieber, Kyla Ross and McKayla Maroney!

Plus, Hilary Duff's adorable 4-month-old Luca mistakes his toy for a snack, Jordin Sparks and Jason Derulo celebrate a milestone, and did Snooki just post her wedding photo?

Check out the personal photos these celebs and more shared on Twitter this week!

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