We're so glad Rihanna is back on Instagram. Her throwbacks are off the chain, her quotes are on point, and now this... We find out (through the best pictures ever, where she's pretending to be Olivia Pope in Scandal) that she's been hanging out in Obama's yard. We've done the sartorial stalking so you don't have to: RiRi's wearing a dress by Caribbean designer, Stella Jean, and it's a masterclass in how to look smart but stay sassy. The tribal party print in this season's '70s colors brings the fun and the pinstripe shirt underneath is so in-case-I-bump-into-an-Obama-appropes. Girl's got our vote.See more fashion news.