How many people can you fit in a karaoke booth?   No, this isn’t the beginning of a bad joke. It’s an honest question and one that I’m pretty sure comedian and musician Alex Prescot would know the answer to. And said answer would probably have something to do with depending on how many fluffy cushions he can get his hands on.   In I've Got A Song About That, Alex Prescot (who also stars in Gigglemug’s A Jaffa Cake Musical), brings his musical talents to Laughing Horse @ City