Barks and beaks: Go to the annual Chicagoland Family Pet Expo this weekend at the Arlington International Racecourse, 2200 W. Euclid Ave., Arlington Heights. $10; $5 kids 3-12; $7 parking. Note: Family pets must be left at home. (847) 385-7500 or petchicago.com or arlingtonpark.com. 9 a.m. to 6 p.m. today, 10 a.m. to 5 p.m. Sunday.

‘Name’ dropping: Catch Williams Street Repertory’s “Any Other Name,” a play by George Brant about identity theft, Victorian style. 26 N. Williams St., Crystal Lake. $35.50. (815) 356-9212 or rauecenter.org or wsrep.org. 8 tonight, 3 p.m. Sunday.

Family ties: See Citadel Theatre’s production of Laura Schellhardt’s “Upright Grand,” a drama that revolves around father-daughter pianists. 825 S. Waukegan Road, Lake Forest. $38. (847) 735-8554 or citadeltheatre.org. 8 tonight, 3 p.m. Sunday.

Sweet times: The Spring Valley Nature Center, 1111 E. Schaumburg Road, Schaumburg, celebrates maple sugar with a pancake breakfast and maple syrup production at the annual Sugar Bush Fair. Free admission; breakfast tickets cost $4-$7. (847) 985-2100 or parkfun.com. 9 a.m. to noon today and Sunday.

By George: Relive the genius of George Gershwin when the Donald Sinta Saxophone Quartet joins the DuPage Symphony Orchestra to play works of the great composer and William Bolcom’s Concerto Grosso. The concert is at Wentz Concert Hall, 171 E. Chicago Ave., Naperville. Tickets $33-$38. (630) 637-7469 or dupagesymphony.org. 8 tonight, 3 p.m. Sunday.