Rihanna's Pendulum Swings Wildly Again

In Adam Selman

** RIGHTS: ONLY UNITED STATES, CANADA ** Cannes, FRANCE - Singer Rihanna stuns in a blue dress with a high cut slit to the hip, showing off her long legs. Rihanna was among the many attendees at this year's 70th Annual Cannes Film Festival. Pictured: Rihanna BACKGRID USA 19 MAY 2017 BYLINE MUST READ: Spread Pictures / BACKGRID USA: +1 310 798 9111 / usasales@backgrid.com UK: +44 208 344 2007 / uksales@backgrid.com *UK Clients - Pictures Containing Children Please Pixelate Face Prior To Publication*

This is what happens when your mother promises to make the costumes for the school play, then forgets to learn to sew until the night before they're due.

in Dior

** RIGHTS: ONLY UNITED STATES, BRAZIL, CANADA ** Cannes, FRANCE - The 'Okja' screening during the 70th annual Cannes Film Festival at Palais des Festivals in Cannes, France Pictured: Rihanna BACKGRID USA 19 MAY 2017 USA: +1 310 798 9111 / usasales@backgrid.com UK: +44 208 344 2007 / uksales@backgrid.com *UK Clients - Pictures Containing Children Please Pixelate Face Prior To Publication*

Dior and Rihanna are a REALLY weird match -- but, Dior apparently just parted ways with Marion Cotillard, so maybe the brand is looking to shake up its reps. Somehow, I doubt this will be a permanent match, given that this looks pretty sloppy on Riri. I would have assumed the point was to keep it simple so that the jewels shone, but then why did she wear the complicated necklace with the LAST dress, and for this one pick stuff that's bunching up around where her coverup is

** RIGHTS: ONLY UNITED STATES, CANADA ** Cannes, FRANCE - Rihanna stuns on the red carpet for the premiere of "Okja" during the 70th Cannes Film Festival 2017. Pictured: Rihanna BACKGRID USA 19 MAY 2017 BYLINE MUST READ: Spread Pictures / BACKGRID USA: +1 310 798 9111 / usasales@backgrid.com UK: +44 208 344 2007 / uksales@backgrid.com *UK Clients - Pictures Containing Children Please Pixelate Face Prior To Publication*

A coverup, by the way, which really is just a giant lab coat.

Perhaps Rihanna can use said lab coat to research the science of why this gown couldn't stay put on her chest. Nobody, I suspect, was doing his or her best work here except for MAYBE the person who picked out her sunglasses.