Thursday, 4/20 After Dark: World Space Party Starts at 6 p.m.; 5020 John R St., Detroit; 313-577-8400 mi-sci.org; tickets are $15 and nonrefundable; 21 and older only.
Friday, 4/21 JoJo Doors open at 7 p.m.; 4140 Woodward Ave., Detroit; majesticdetroit.com; Tickets are $25 in advance and $28 the day of.
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Fri-Sun, April 21-23 Sister Act Shows start at 8 p.m. on Friday and Saturday, 2 p.m. on Sunday; doors open a half hour before showtime; 18445 Scarsdale, Detroit; 3130835-1103; parkplayers.org; tickets are $20.
Fri-Sun, April 21-23 Alvin Ailey American Dance Theatre Shows start at 7:30 p.m. on Friday and Saturday, 2:30 p.m. matinee on Saturday and Sunday; 1526 Broadway St., Detroit; 313-237-7464; michiganopera.org; tickets start at $30.
Saturday, 4/22 Detroit Mingle Starts at 7 p.m.; 6513 Woodward Ave., Detroit; 313-420-6000; eventbrite.com; admission is free.
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Saturday, 4/22 Detroit by Detroit Doors open at 8 p.m.; 22634 Woodward Ave., Ferndale; DETxDET.com; $10 donation at the door.
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Saturday, 4/22 Spring Clean Up Registration starts at 8 a.m. Clean up starts at 9 a.m.; Flynn Pavilion, Belle Isle, Detroit; 313-821-5428; belleisleconservancy.org; free.
Tuesday, 4/25 Dead Man Winter Doors open at 7 p.m.; 345 E. Nine Mile Rd., Ferndale; facebook.com/OtusSupply/; Tickets are $15 in advance and $20 at the door.