Johnny Depp, aka Captain Jack Sparrow, surprised students at a school in London.
A student wrote to Captain Sparrow asking him to come visit as he is filming the 4th installment of the Pirates of the Caribbean movies. The letter said, 'Captain Jack Sparrow, At Meridian Primary School, we are a bunch of budding young pirates and we were having a bit of trouble mutiny-ing against the teachers, and we'd love if you could come and help."
Sure enough: Depp arrived, in full costume.
He asked the young girl who wrote the letter to make herself known. He gave her a big hug and said no mutiny today because the police are outside.
The school only knew of Depp's visit 10 minutes before he arrived.