Rock legends AC/DC can still put warm bodies in the seats, as evidenced by a string of sellouts that has prompted the group to add more shows to its first world tour in eight years.

The veteran rockers racked up 18 sellouts after tickets hit the box office last weekend, with Chicago's Allstate Arena and New York City's Madison Square Garden selling out in minutes, Vancouver's General Motors Palace selling out in a venue-record four minutes, Toronto's Rogers Centre selling out faster than any stadium concert in the venue's history, and San Antonio fans purchasing more tickets for AC/DC in a single day than for any other artist in that market's history, according to a press release.

The rapid sellouts prompted the group to add encore performances in Chicago, Los Angeles and Oakland, CA. The updated itinerary--which still kicks off with an Oct. 28 concert in Wilkes-Barre, PA--is included below.

One week before AC/DC hits the road, the group will offer up "Black Ice," its first studio effort since 2000's "Stiff Upper Lip." The new collection--produced by Brendan O'Brien (Bruce Springsteen, Pearl Jam) and mixed by the band's longtime audio engineer, Mike Fraser--features the leadoff single "Rock 'N' Roll Train," which hit radio stations late last month and went to No. 1 at rock radio, according to Sony BMG. The cut is streaming at the band's website.

Earlier this month, AC/DC released "No Bull: The Directors Cut," a newly edited HD DVD version of its July 1996 concert at the famed Plaza De Toros de las Ventas bullring in Madrid, Spain.