The Boston Parks & Recreation Department invites you to get your groove on at its 4th Annual Roller Disco Party honoring five-time Grammy winner and Boston native Donna Summer. The event will take place on Friday, June 23 beginning at 6 on City Hall Plaza, 1 City Hall Square in Boston. The vent will feature a performance by Mary Gaines Bernard, music provided by New Engld’s finest dj Roy Barboza, and appearances by O’Mega Red and members of Donna Summers’ family. If you don’t have your own skates, the City of Boston will be providing free rentals on a firs-come, first-serva basis. For more information email firstname.lastname@example.org, or call 617-635-3911. Free.