Historic moments Scholars Judith Giesberg, Adam Goodheart, Ted Widmer, and Sean Wilentz discuss the preparation for the nation's single most famous battle in the panel The Eve of Gettysburg at 6:30 p.m. at the National Constitution Center, 525 Arch St. Tickets are $10; $7 students. Call 215-409-6600. . . . Pulitzer Prize-wining historian Joseph Ellis ( Founding Brothers) discusses his new book Revolutionary Summer: The Birth of American Independence, focusing on the warmer months of 1776, at 7:30 p.m. at the Free Library, 1901 Vine St. Admission is free. Call 215-567-4341.
Smart pop English indie icons the Boxer Rebellion team with California pop perfectionists Rogue Wave for a double bill at 8:30 p.m. at Union Transfer, 1026 Spring Garden St. Tickets are $18. Call 215-232-2100.
The tao of Steve For a generation, Steve McQueen cemented his rep as the ultimate in cool, battling Nazis with a baseball glove and a TT Special 650 Triumph motorcycle in the 1963 war epic The Great Escape. As a POW determined not to let his spirit be broken even though his body could be, he taught a valuable lesson on how to be free. The film screens at 7 p.m. at the County Theater, 20 E. State St., Doylestown. Tickets are $9.75; $7.25 seniors. Call 215-345-6789. The film also screens at the Ambler Theater, 108 E. Butler Ave., Ambler, at 7 p.m. Thursday. Tickets are $9.75; $7.25 seniors and students. Call 215-345-7855.
From down under Perth, Australia, is one of the most remote cities in the world - maybe that's why it's producing some of the most interesting cultural figures these days, from the intriguing comic-book artist Ashley Wood to the fascinating robotics sculptor Geoffrey Drake-Brockman to the virtuoso rock genius Kevin Parker. Parker's project Tame Impala is in the solid tradition of bands born from bedroom recordings, and his last record, Lonerism, is one of 2012's best - a swirling psychedelic pop symphony powered by Parker's Lennon-esque vocals. Parker and company play, with former Mazarin frontman Quentin Stoltzfus and his new band Light Heat as openers, at 8 p.m. at the Electric Factory, 421 N. Seventh St. Tickets are $25. Call 215-627-1332.
Most happy fellow Comedian Daniel Tosh, an equal-opportunity offender, is on his "June Gloom Tour," which tells you what to expect. He performs at 7 and 9:30 p.m. at the Tower Theater, 19 S. 69th St., Upper Darby. Tickets are $49.50 to $75. Call 610-352-2887.
Friday & Saturday
Lift every voice Conductor Brian Schkeeper leads the Philadelphia Singers in a community sing-in performance of Mozart's Requiem, featuring soloists Evelyn Santiago-Schulz, soprano, Fran Bjorneby Kraemer, mezzo-soprano, Bryan Hoyos, tenor, and Ryan Tibbetts, bass, at the Friends Center, 15th and Cherry Streets, at 6:30 p.m. Friday. Admission is free; registration for singers required (bring your own music). Call 215-751-9494.
Classic rock It's getting ridiculous that the Zombies, one of the best British Invasion bands, is not in the Rock and Roll Hall Fame after being eligible for 25 years. The 1960s greats, with original vocalist Colin Blunstone and keyboardist Rod Argent bringing along a guest legend, multi-instrumentalist Al Kooper, for good measure, perform at the Keswick Theatre, Easton Road and Keswick Avenue, Glenside, at 8 p.m. Friday. Tickets are $39.50 and $49.50. Call 215-572-7650.
Chamber pop The sensational alt-orchestral ensemble Mother Falcon performs Radiohead's seminal 1997 album OK Computer in its entirety at World Cafe Live, 3025 Walnut St., at 9 p.m. Saturday. Tickets are $10. Call 215-222-1400.
A complete guide to events in the region over the coming weekend will appear in the Weekend section in Friday's Inquirer. Send notices of events for "7 Days" to Michael Harrington at firstname.lastname@example.org.