Is the sentiment detected in the input text neutral?

Input: "Nekromantix, The Black Rose Phantoms, The Spoofs and Clownvis will be performing at the House of Blues on Dec 21! I got 4 free tix! Lets go!"
"Nekromantix, The Black Rose Phantoms, The Spoofs and Clownvis will be performing at the House of Blues on Dec 21! I got 4 free tix! Lets go!"