Chris Isaak performs at the Pacific Amphitheatre, as part of the O.C. Fair. The show starts at 8 p.m. For more information, visit http://www.pacamp.com.
TOPS (Take Off Pounds Sensibly), a nationwide nonprofit organization, meets from 7 to 8 p.m. Wednesdays at 1701 Baker St., Costa Mesa. The first meeting is free and guests are welcome. No reservations are required. For more information, visit http://www.tops.org, or call (800) 932-8677.
Duesenberg Luxury Cars
The Lyon Air Museum will be displaying ten Duesenberg automobiles from Gen. William Lyon's collection. The museum, 19300 Ike Jones Road, Santa Ana, has daily hours of 10 a.m. to 4 p.m. and various admission charges. Visit http://www.lyonairmuseum.org or call (714) 210-4585 for more information.
TILL AUG. 7
The Segerstrom Center for the Arts presents "Mary Poppins," the hit musical based on the Disney film. Showtimes vary. Tickets start at $22.50. For more information, visit http://www.scfta.org or call (714) 556-2787.