Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: I don't know why everyone is pretending to be sad about angelina and brad, everyone knows his dumb ass should've stayed with jennifer.
This tweet contains emotions: 
anger, disgust, sadness