Khloe Kardashian P Diddy View Gallery

Best Celebrity Instagrams Of The Week: Khloe Kardashian Hangs With P. Diddy, That '70s Show Stars Reunite and More!

Take a peek at our Best Celebrity Instagrams of the Week below to see what Justin Bieber, Rita Ora, John Legend, Kristin Cavallari and more fabulous stars were up to!

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