AC/DC back for round two

AC/DC When: 8 p.m. tomorrow at Verizon Center (D.C.) Tickets: $92.50 Info: http://www.ticketmaster.com or (800) 745-3000 The latest: Almost exactly a year ago, AC/DC's first studio album in eight years, "Black Ice," arrived exclusively at Wal-Mart and Sam's Club -- a gamble that paid off with the ultimate jackpot: a debut at No. 1 on the Billboard album chart, 785,000 copies sold its first week, and now, sales hovering in the 2.5 million range in the U.S. alone. The band's notoriously electrifying live shows meant that its worldwide tour would result in major ticket sales. Indeed, according to concert trade magazine Pollstar, AC/DC's tour grossed $150.6 million in the first half of 2009 and played to a total of more than 1.7 million people in 61 shows in Europe and the U.S. The band played a sold-out show at the Verizon Center in November, but, given the aforementioned numbers, can you blame it for returning? Sound bite: This is the band's first date back after postponing the first six dates of this new fall leg while singer Brian Johnson recuperated from a medical procedure involving ulcers. The band releases "Backtracks," a three-CD/two-DVD box set of rare studio and live tracks, on Nov. 10.