Dre Day (With Gratuitous Wet T-Shirt Contest)

Life Sucks Die magazine's Andrew Broder released a song called "What a Day Day," soliciting a slew of puns from his coworkers: "What a Dre Day" stuck. Broder's friends decided to transform their inter-office joke into a nationally celebrated holiday, to correspond with the rapper's birthday: February 18. This year, the local celebration took place at the Music Hall of Williamsburg. More about the event here.