Friday

Gleason Gras and Saints Pep Rally

This annual event, named in honor of former Saint Steve Gleason, raises awareness for Lou Gehrig’s disease with a jamming good time, with music, food, an auction, a Saints fan costume contest and even appearances by the 610 Stompers. 4 p.m., Champions Square, Lasalle Street, New Orleans. www.gleasongras.org.

Friday

Mid-City Porch Crawl

Tour six Mid-City porches on this eccentric, distinctly adult, Halloween-oriented celebration, with food and beverages at this fundraiser for Mid-City Neighborhood Organization. 6:30 p.m., Evangeline Lounge, 4501 Toulouse St., New Orleans. $50, $30 for designated drivers. www.mcno.org.

Friday through Sunday

World War II Airpower Expo

Get an up-close look at the fabled aircraft that ruled the air in World War II! For one weekend only, see majestic WWII planes fully restored — including a P-51 Mustang, B-17 Flying Fortress, B-25 Mitchell, B-29 Superfortress and an assortment of fighters, trainers and liaison aircraft. Presented by the National World War II Museum. 9 a.m. to 5 p.m. (4 p.m. Sunday), Lakefront Airport, 6001 Stars and Stripes Blvd., New Orleans. (504) 528-1944.

Friday through Sunday

Marigny Opera House Dance Company

The local dance operation launches a season of premieres, including works by choreographers Donna Crump, Diogo de Lima and Maya Taylor, accompanied by live music. 8 p.m., Marigny Opera House, 725 St. Ferdinand St., New Orleans. (504) 948-9998. www.marignyoperahouse.org.

Saturday

Susan G. Komen Race for the Cure New Orleans

The Crescent City observation of the national cancer-fighting fundraising effort kicks off with a 5K race, festivities and more. 8 a.m., City Park, New Orleans. www.komenneworleans.org.

Monday

Orchestra of the Universidad del Bolivar de Cartagena, Columbia

This 55-piece orchestra will play a variety of music, ranging from Tchaikovsky’s “Romeo and Juliet” to popular music from Columbia. 7 p.m., Trinity Episcopal Church, 1329 Jackson Ave., New Orleans (504) 522-0276. www.trinityartistseries.com.