Who punched Angelina Jolie's husband?

Brad Pitt was all bruised face when he arrived at a charity event in Hollywood on Saturday, April 25.

The 'World War Z' actor seemed alright in his all black ensemble but his some what injured face hardly went unnoticed.

There was a big bruise which started under his left eye, trailing under his nose leaving many to question: who did this?

There's still no clue on what really caused Brad's injured face but its obvious it didn't stop him from having a good time.