If you haven't cried to Sam Smith after hooking up with an SAB, then you're way more emotionally stable than I am. Anyway, he met Prince William, Prince Harry, and Kate Middleton at the premiere for the new James Bond movie. Sam went for some Pride and Prejudice level entrance and "made a deep, dramatic, 18th Century courtier-worthy bow" - that's a shit ton of adjectives that means he tried way too fucking hard.
When meeting Prince William, you're just supposed to bow your head because he's not King...yet. Sam obvi missed that memo because he was too busy talking shit about Miley Cyrus with Katy Perry.