The David Suzuki Blue Dot Tour stops in Montreal, hosting a free picnic in Parc Maisonneuve this afternoon, with live music by les Cowboys Fringants, Ariane Moffat, Lisa Leblanc and more. (See details about the tour’s main event, a benefit concert at the Corona Theatre on Oct. 15, here.) Parc Maisonneuve (4601 Sherbrooke E.), 12–4 p.m., free
The Hip Hop Café invites turntable jockeys of all styles and skill levels to this weekend’s Sunday Scratch Sessions, hosted by Mike Brace, Manzo and Killa-Jewel. 4801 Parc, 4–8 p.m., free
San Francisco psych-pop act Foxygen plays le National with Dub Thompson and Heat. 1220 Ste-Catherine E., 9 p.m., $18–$20
The main event of the annual Black and Blue festival is always a dance party of epic proportions, but Inspiration Metropolis sounds especially spectuacular — the big room at Palais des Congrès has been remodelled after the art deco design of Fritz Lang’s landmark 1929 film Metropolis. See the list of DJs and all the details here. 201 Viger W., 10 p.m.–10 a.m., $95
If you’re looking for a more intimate party on this long weekend, the fourth edition of Keep It 100 beckons. with DJs Truspin, Sagewondah and JRMKRL know their shit. Mme Lee (151 Ontario E.), 10 p.m.
Check out our complete listings for more club, stage and gallery events.