11 a.m., 12:30 p.m., 2 p.m.: Estate Park and Nature Tour, Duke Farms, Hillsborough. Also Thursday through Sunday. For reservations call (908) 722-3700.
2 and 8 p.m.: The Music Man; Bucks County Playhouse, New Hope, Pa. Also Thursday at 2 and 8 p.m., Friday at 8 p.m., Saturday at 4 and 8 p.m., Sunday at 2 p.m.
11:30 a.m.: Mercer Regional Chamber of Commerce luncheon, with Thursday Night Jazz group; Nottingham Ballroom, Hamilton.
6 p.m.: Arts Council Summer Concert with Celtic Crossroads and Trenton Division 1 Pipe Band; Princeton Shopping Center Courtyard. Free.
7:30 p.m.: Music Under the Stars concert with Mitchel's Cajun Aces; Grounds for Sculpture, Hamilton.
8 p.m.: Princeton Summer Theater's Miss Connections; Hamilton Murray Theater, Princeton University. Also Friday and Saturday at 8 p.m., Saturday and Sunday at 2 p.m.
8 p.m.: Twelfth Night; Pettoranello Gardens Amphitheater, Community Park North. Also Friday through Sunday at 8 p.m.
8 p.m.: Radio Gals; Open Air Theatre, Washington Crossing State Park, Titusville. Also Friday and Saturday at 8 p.m.
9 a.m. to 3 p.m.: Mercer Regional Chamber of Commerce Business Expo; Trenton Marriott Hotel.
10 a.m.: Jack and the Beanstalk; Off-Broadstreet Theatre, Hopewell. Also Saturday at 10:30 a.m.
Noon: Talk on "Government Entitlements for Seniors"; Suzanne Patterson Center. Free. To register, call (609) 924-7108.
5 to 8 p.m.: Princeton Family YMCA Membership Appreciation Day; YMCA, Paul Robeson Place. Free.
8 p.m.: Nunsensations!; Off-Broadstreet Theatre, Hopewell. Also Saturday at 8 p.m., Sunday at 2:30 p.m.
8 and 10:30 p.m.: Comedians Joe Restivo and Steve Lazarus; Catch A Rising Star Comedy Club, Hyatt Regency Hotel. Also Saturday at 8 and 10:30 p.m.
Noon to 4 p.m.: Greater Princeton Youth Jazz Festival; Princeton Shopping Center.
6 p.m.: Music in the Park; Mercer County Park, West Windsor.
6:30 p.m.: "Pops at the Pub" with The Two of Us; Halo Pub, Hulfish Street.
7 p.m.: Jeanie Bryson Duo; Hopewell Valley Bistro, Hopewell.
7:30 p.m.: Singer Erin Bode; Grounds for Sculpture, Hamilton.
Recycling Pickup
Noon: Concerts on the Landing Series, with John Jackson's R&B/jazz band; War Memorial, Trenton.
2 to 8 p.m.: American Red Cross Blood Drive; Adath Israel, 1958 Lawrence Road, Lawrenceville. Also Mercer County Community Donor Center, 707 Alexander Road; and Cherry Valley Country Club, Skillman.
7:30 p.m.: Township Zoning Board of Adjustment; Township Municipal Complex.
8 p.m.: Radio Gals; Open Air Theatre, Washington Crossing State Park, Titusville. Also Thursday, Friday, and Saturday at 8 p.m.
Noon: Screening of The Wild Parrots of Telegraph Hill; Princeton Public Library. Free.
6 p.m.: Arts Council Summer Concert Italian Festival, with music by Jay Posipanko and Michael Lemma; Princeton Shopping Center Courtyard. Free.
7 p.m.: Tonerangers rock & blues band; Weeden Park, Lawrenceville.
8 p.m.: Twelfth Night; Pettoranello Gardens Amphitheater, Community Park North. Also Friday through Sunday at 8 p.m.
7 p.m.: Courtyard Concert with Snapperhead Zydeco; Grounds for Sculpture, Hamilton.
8 p.m.: Nunsensations!; Off-Broadstreet Theatre, Hopewell. Also Saturday at 8 p.m.
8 and 10:30 p.m.: Comedians Pete Michael and Paul Verzi; Catch A Rising Star Comedy Club, Hyatt Regency Hotel. Also Saturday at 8 and 10:30 p.m.
6 p.m.: Music in the Park; Mercer County Park, West Windsor.
6:30 p.m.: "Pops at the Pub" with Larry Tritel; Halo Pub, Hulfish Street.
9 p.m.: Thomas Sweet Outdoor Cinema, A League of Their Own; Hopewell Train Station. Free.