Since the beginning of the year, the Black Cat has been hosting a weekly "Muggle Mondays" party with free screenings of the Harry Potter films (in order) and discounted "Butterbeer." This week, Harry and the Potters, a Massachusetts indie-rock band that writes songs about (what else?) events in the Harry Potter books, will perform before the showing of "Harry Potter and the Deathly Hallows: Part 1."

For those of you who may be unfamiliar with Harry and the Potters, we've posted a representative sample of songs below.