AC/DC recently wrapped its U.S. tour for 2009, but the hard rock crew has some unfinished business in the states. The band has nearly 20 international engagements booked through March, but its national fanbase can look up to a couple make-up concerts later in spring 2010.

The group's performance in Las Vega, NV, originally scheduled for October 3 at the MGM Grand Garden Arena, is now set for April 9. Meanwhile, an October 10 event at Wells Fargo Arena in Des Moines, IA, has been rebooked for April 17.

The planned October 1 start of AC/DC's latest North American tour leg has been postponed as lead singer Brian Johnson recovers from an unspecified medical procedure. The fall 2009 portion of the Black Ice World Tour will instead relaunch October 16 at Verizon Center in Washington, DC.

In addition to the opening night at the U.S. Airways Center in Phoenix, AZ, five other shows have been postponed in Las Vegas, NV; Louisville, KY; Kansas City, MO; Des Moines, IA; and Milwaukee, WI. Additional details of the rescheduled shows are expected by the middle of this week. Until then, concert promoter Live Nation has advised fans to hold onto their tickets.

Another injury puts Aerosmith back in the headlines, along with fictional band Dethklok, in the daily tour recap for August 6, as compiled by TicketNews.

Aerosmith's current North American tour has hit another injury related roadblock, just shortly after recovering from a recent bout of cancellations. The rock group may be forced to postpone or cancel more shows after an August 5 performance that culminated in frontman Steven Tyler falling from the stage and being hospitalized with head, neck and shoulder injuries.

Tickets for upcoming concerts from Bruce Springsteen and the E Street Band, as well as tickets for upcoming tour stops from AC/DC, are on sale throughout the weekend ending August 3 as compiled by Ticket News.

The onsales list began today with tickets to see rising singing star Colbie Caillat live on her upcoming tour. The pop singer/songwriter will be playing concerts in Toronto, New York, Philadelphia, and Atlanta. Also on sale today are tickets for upcoming concerts from rockers Alice in Chains. Among the dates on sale are stops in Seattle. Joining their fellow rockers in the Friday onsales are the Insane Clown Posse, who have concerts in Atlanta and Detroit among the onsales.

AC/DC’s Australian fans apparently missed the native hard rockers. Tickets for their 11-date Black Ice Australian tour next year sold more than 500,000 tickets on May 25 in first-day sales for their February and March 2010 concerts according to a press statement. The group’s last Australian tour was in 2001.

Melbourne’s shows on February 11 and 13 at the 60,000-capacity Etihad Stadium and Sydney’s February 18 and 20 shows at the 60,000-capacity ANZ Stadium both sold out in 15 minutes. As a result of the fast sales, third shows have been added to the Melbourne and Sydney runs on February 15 and February 22, respectively.