Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Rockin to  Bob Dylan singin'  Bob Dylan's 115th Dream on LPCO Klassic Rock #classicrock #klassicrock #rocknroll #blues #onlineradio
This tweet contains emotions: 
joy