But, I Can't Sing

Ramos prods you once again and smiles encouragingly, it's very very hard to say no to that face so you take a huge breath of air, and pull the microphone towards you. All at once the music picks up and the base drops down, you can feel the words being ripped from your throat with a brutal deep ferocity and Ramos looks shocked at the large voice coming from the shy girl/boy in front of him before a giant grin lights up his face. He grabs your hand and pulls you up on stage where the crowd claps and hollers loudly for you.
You feel happier in this moment than you have in a long time and when Ramos asks,
"What song do you want us to sing as our farewell piece?" You know the answer in your heart isn't their most popular song and some of the crowd won't know it should you pick it or a more popular song?
You choose...