Dance the night away at a silent disco with Talib Kweli as your DJ
Head to Grove Alley, grab silent disco wireless headphones for $5, and pick your poison between three DJs (one being hip-hop artist Talib Kweli). There will be food from Kimchi Taco, Coolhaus and more for sale, as well as Brooklyn Brewery beer, plus goodies for sale from local retailers and an interactive art display.
Grove Alley, Brooklyn, 5-11pm, free
Spit your best game at Brooklyn Bowl's Hip-Hop Karaoke
You know every single word to that Nicki Minaj song, and now's your time to shine. Put your name in the running to perform onstage, and keep your eyes peeled for special guests—Big Daddy Kane and Rhymefest have shown up before.
Brooklyn Bowl, 9pm, $10, $7 advance
Celebrate Harry Potter's birthday at Professor Thom's
Get ready to meet fellow fans who know everything about Luna Lovegood (don't call her Loony) and Death Eaters in this celebration of The Boy Who Lived! You'll pin the scar on the chosen one, eat cake and candy, and drink down cocktail specials (butterbeer anyone?) and a screening of the Sorcerer's Stone. You're a wizard, Harry!
Professor Thom's, 8pm, $5