Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @indiamarshall_ that's great! It's not easy!\n&amp; it's amazing when nervousness turns into adrenaline 😂\nHad you had concerts as soloist before?
This tweet contains emotions: 
joy