Armin Van Buuren: With Blake Jarrell, Thomas Emmanuel, Jeremy Jerome and Ryan Christopher, 9 p.m. Bleu Room Experience, 1540 Woodward, Detroit. 313-222-1900. $25, $60 VIP. Hijacked Records 10-Year Anniversary: With Twonz, Tim Baker, more. The Works, 1846 Michigan Ave., Detroit. 313-961-1742. $5.
Some techno die-hards will tell you that the action at Hart Plaza is only a precursor to the really good stuff: the parties that sprout like reeds all over the city on Memorial Day weekend. This year will be no exception, with dozens of events scheduled at lofts, warehouses, nightclubs and other venues. Here's some best-of weekend picks and a full list of afterparties.