Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: I feel like singing the song human sadness by Julian Cassablancas and The Voidz or some other sad music. #depression #sad #sadness
This tweet contains emotions: 
pessimism, sadness