HELLO! Online's pictures of the week: the best Instagram and Twitter photos from Rihanna, Cara Delevingne and more

Whether they're sharing their best snapshots on Twitter, Instagram or WhoSay, Rihanna, Cara Delevingne and the rest of the A-list world have a way of letting us know what they're up to.

New York city sun, Gatsby glamour and the best parties going, take a sneak peak at HELLO! Online's best celebrity pictures of the week...

 

CLICK ON IMAGE TO VIEW THE BEST PICTURES OF THE WEEK