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Singer Rihanna at the GPE Financing Conference. Photo: Ludovic Marin/AFP/Getty Images

Snap fell 4% on Thursday after singer Rihanna blasted Snapchat for running an ad mocking her and former boyfriend, Chris Brown, reports Business Insider. The ad asked users if they'd "rather slap Rihanna or punch Chris Brown." Brown pleaded guilty to assaulting Rihanna in 2009 after the two got into an argument in a car.

Snapchat pulled the ad and released a statement to BBC: "The advert was reviewed and approved in error, as it violates our advertising guidelines. We immediately removed the ad last weekend, once we became aware. We are sorry this happened."

A tweet previously embedded here has been deleted or was tweeted from an account that has been suspended or deleted.

Rihanna reacted to the apology in an Instagram post: "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."

Go deeper: Kylie Jenner disavowed Snap earlier with criticism on a new update.

Go deeper

Federal court blocks Biden's vaccine mandate for health workers in 10 states

President Biden delivers remarks on the Omicron COVID-19 variant following a meeting with his COVID-19 response team. Photo: Anna Moneymaker via Getty Images

A federal court in Missouri has blocked the Biden administration from enforcing a coronavirus vaccine mandate for health care workers at federally-funded facilities in 10 states.

Why it matters: Monday's decision is the first victory for opponents of the rule, which requires health care workers to get vaccinated by Jan. 4, 2022. The case is one of four lawsuits challenging the Centers for Medicare & Medicaid Services' (CMS) rule and argues that the mandate will exacerbate staffing shortages.

Twitter's next act

Illustration: Annelise Capossela/Axios

Twitter co-founder and CEO Jack Dorsey is exiting the company he helped build at a time when its future has never been so uncertain.

Why it matters: The person who controls Twitter controls the de facto public square — with implications for politics, media and free speech.

48 mins ago - Health

CDC strengthens COVID booster recommendation

Rochelle Walensky. Photo: Chip Somodevilla/Getty Images

The Centers for Disease Control and Prevention (CDC) on Monday strengthened its previous recommendation for booster shots, saying that everyone 18 and older "should" receive a booster dose.

Why it matters: Last month, CDC director Rochelle Walensky accepted a key advisory committee's recommendation that adults "may" get the shot. The slight, but strengthened, change in wording comes amid the emergence of the Omicron coronavirus variant.