The Sing Along Social is a zero-commitment choir hosted by Aoife McElwain and Anna Jacob, designed for people who can’t really sing. It’s for the singers who were told to mime in other choirs or kicked out of karaoke bars for being off key. You don’t need to practice. You don’t even need to know the words. It’s about caterwauling along to some great songs in the company of friends and strangers. Good singers welcome, too.