Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @ddlovato: Tune in tonight on @CBS to see me perform on Stayin' Alive: A #GRAMMYSalute To The Music Of The #BeeGees 8 p.m. ET/PT!!" STOCK: nan DATE: nan
Sentiment: (Provide sentiment here)
Explanation: The tweet sentiment is related to the stock mentioned, and it's important to interpret the context. The LSTM polarity score is nan and the TextBlob polarity score is nan.