The Mental Notes are a student acapella group on the Hopkins Campus. For dates of shows, you can go to their website or contact them through email. I've seen them perform a couple times before and every time they impress me. I find their humor hilarious because they don't need to be crass in order to be funny. Also, they're amazing singers and have great voices. When they perform, you can tell they really enjoy it, and they're parodies of popular pop songs are even more enjoyable for the audience. Mostly they do coveres of pop songs, so if you really like pop music and want to go to a free concert instead of paying $70 for some overpriced mainstream show, go see the Mental Notes!