5 things to know this morning: Ariana Grande honors Manchester, Charlize Theron cast as Megyn Kelly, and USA Swimming sued

Good morning! Catch up on your pop culture news with our roundup of today’s top stories — so far. 

1. Ariana Grande marks Manchester bombing anniversary
May 22 marks one year since 22 were killed in a bomb attack at Ariana Grande’s concert in Manchester, England. The pop star paid tribute to the lives lost in a Twitter post this morning. Read more >

Grande performed at a Manchester benefit concert last June, just weeks after the fatal bombing. (Photo: Getty Images/Dave Hogan for One Love Manchester)

2. USA Swimming accused of sexual abuse cover-up
Olympic swimmer Ariana Kukors Smith has filed a civil lawsuit against USA Swimming, claiming that the organization “enabled a known predator coach to sexually molest” her. Read more >

3. Charlize Theron to play Megyn Kelly
Charlize Theron has been cast as Megyn Kelly in an upcoming film about the sexual harassment scandal surrounding Fox News and its late CEO, Roger Ailes. Kelly was a popular figure at Fox News before departing for NBC. Read more >

4. Everyone’s a winner
There’s a new Miss USA, American Idol winner, and Dancing with the Stars champion. Hint: Two of them are from the Midwest, and one’s Adam Rippon. Read more >

5. Camila Cabella diagnosed with dehydration
Camila Cabella had to pull out of opening for Taylor Swift’s Seattle date due to dehydration, prompting concern and speculation from fans. Read more >

Thanks for reading! Come back this evening for your p.m. pop culture roundup.