With a single Instagram story...

Rihanna sent sent the shares of social media service Snapchat tumbling yesterday (March 16th).

The platform appeared to a show an ad earlier in the week which made light of Chris Brown's notorious attack on Rihanna.

The singer endured a savage assault at the hands of her partner in 2009, requiring hospital treatment and resulting in pictures that horrified the world.

The ad users if they would rather slap Rihanna or punch Chris Brown, causing immediate condemnation from the platform's global user-base.

Snapchat pulled the ad - seemingly approved by a third party - and apologised: "The advert was reviewed and approved in error, as it violates our advertising guidelines."

Rihanna wasn't about to take this lying down, responding: "I’d love to call it ignorance, but I know you ain’t that dumb!"

Following further statements from Snapchat the singer posted a full message online via Instagram story, advising fans to delete the app:

"Now SNAPCHAT I know you already know you ain’t my fav app out there! But I’m just trying to figure out what the point was with this mess! I’d love to call it ignorance, but I know you ain’t that dumb! You spent money to animate something that would intentionally bring shame to DV victims and made a joke of it!!!! This isn’t about my personal feelings, cause I don’t have much of them...but all the women, children, and men that have been victims of DV in the past and especially the ones who haven’t made it out yet....you let us down! Shame on you. Throw the whole app-oligy away."

The result? Snapchat's shares have collapsed, losing more than 5% of their total value in just a few hours. It's the latest in a series of knocks for the service, which has suffered after high profile users decided to log off permanently.

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