"Did you dress up for Halloween?" Because Harry Styles sure did. 

The My Policeman star traded in his uniform for a sweet leather jacket, black jeans, and a slicked back hairstyle as he transformed into Danny Zuko from Grease as part of his annual "Harryween" concert celebration. The "Watermelon Sugar" singer's ensemble played homage to Danny's final outfit in the 1978 movie musical, but with its own twist: both Harry's leather jacket and black, studded were both emblazoned with the word 'Harryween' in sparkling red gems on the back.