Just as Daniel Radcliffe, Rupert Grint and Emma Watson arrived at Leicester Square for the premiere of Harry Potter and the Half-Blood Prince, a huge downpour hit London.
Check out the bottom of Dan's suit and Rupert's hair. Soaked!
The stars were drenched, but that didn't stop them from posing for photos and having a great time.
Rupert looked well too, especially for just getting over his case of Swine Flu.
At a Harry Potter press conference, he said he was nervous when he was told what he was sick from.
"It was quite scary when I first found out I had swine flu," he said. "I thought, 'Am I going to die?' But it was just like any other flu really."
Thankfully, he ended up being fine. "I had a sore throat and I went to bed for a few days."