AC/DC have posted another video teaser promoting their upcoming boxset, Backtracks, due out on November 10th via Sony Music Entertainment. Check it out below.

AC/DC recently launched a special website called ACDCBacktracks.com which tells fans that they'll be making an "exciting announcement on September 29th."

The rumored major box set is said to contain three CDs, two DVDs and a vinyl album, all containing previously unreleased studio and live rarities. The set will come in a working amplifier and also feature a book, flyer, poster and lithographs of never-before-seen photos.

AC/DC’s Black Ice World Tour, which was set to hit Phoenix, AZ on October 1, will be postponed to a later date. Frontman Brian Johnson is recovering from a medical procedure and his doctors have advised him to take time to rest.

Subsequent shows in Las Vegas, Louisville, Kansas City, Des Moines and Milwaukee will also be rescheduled. The tour will resume on October 16 in Washington, DC (see below for full itinerary). Lead singer Brian Johnson recently underwent a medical procedure and at the advice of his doctor is taking some time to rest. The Black Ice World Tour kicked off in October of 2008 and has crisscrossed North America and Europe twice.

This November, the Black Ice World Tour will visit Latin America and by early 2010 the tour will hit Australia and New Zealand. AC/DC’s Black Ice was released globally on October 20, 2008 and topped sales charts in 29 countries. In the US alone, Black Ice sold 780,000 copies in it’s first week and has since sold in excess of 2 million units.

October

16 - Washington DC Verizon Center
18 - Buffalo, NY HSBC Arena
21 - Philadelphia, PA Wachovia Center
23 - Atlanta, GA Phillips Area
25 - Greensboro, NC Greensboro Coliseum
28 - New Orleans, LA New Orleans Arena
30 - Jacksonville, FL Jacksonville Arena

November

4 - Oklahoma City, OK Ford Center
6 - Austin, TX Frank Erwin Center
12 - Mexico City, MX Foro Sol
19 - Orlando, FL Amway Arena
21 - San Juan, PR Coliseo de Puerto Rico

As previously reported, AC/DC are returning to South America. The last time South America witnessed the sheer power of AC/DC in concert, the band was breaking balls. Well, AC/DC's bound for South America once again and this time they're riding in on their Rock 'n Roll Train as part of their Black Ice World Tour.

AC/DC has announced that they will perform at Morumbi Stadium in Sao Paulo on November 27 and at River Plate Stadium in Buenos Aires on 2 December.

These mark the first South American concert dates for AC/DC since the band performed a series of shows in October of 1996 as part of the Ballbreaker World Tour.

Tickets for the Morumbi Stadium concert in Sao Paulo go on-sale to the public and members of the Fan Club through a special allotment on Thursday, 1 October and for the River Plate Stadium concert in Buenos Aires on Tuesday, 29 September.