Parties have birthdays too—and this weekend, celebrate milestones for two of our favorites. The Rub, South Brooklyn’s leading hip-hop night, has been through plenty in the past year, with its old home Southpaw closing up shop and the party’s subsequent move to the Bell House. This Saturday night marks the Rub’s 10-year anniversary; expect a blowout with big crowds and club favorites from DJs Ayres and Eleven. The house-and-disco-loving guys Eamon Harkin and Justin Carter, whose late-night Mister Saturday Night and Sunday-afternoon Mister Sunday parties have developed a cult following, celebrate their 100th party this Sunday, at Gowanus Grove. Taking place alongside the Gowanus Canal (a more picturesque location than you’d imagine), club kids and families alike turn out for Mexican food from Country Boys, sangria, and dancing under a disco ball in the trees. This week, they promise balloons, an “extra-special” food vendor, and free entry for the first two hours, if you RSVP beforehand. If that’s not the perfect way to recover from your Saturday night hangover, I’m not sure what is. –C.A.