There was a lot of star power on Twitter this week — both Gisele Bündchen and Lauren Conrad made big (and adorable) friends during their trips to Africa, while Rihanna visited her grandparents in Barbados. Model Erin Heatherton had some fun in the sun, and Brad Goreski sported his signature colorful style with a group of famous friends. It's all in this week's celebrity Twitter roundup — click through to see all the stylish snaps now!
Fun, Fashionable Twitter Pictures of the Week!
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