The Jay-Z/Kanye West collaboration 'Watch the Throne' hits iTunes in a week (Aug. 8) and brick-and-mortars a week after that, but fans eager to see them in person will have to wait until late October to take in their live show, according to Pitchfork.

An earlier statement from Roc Nation explained that the re-routing would be due to overwhelming demand for the tour. Additional dates are expected and the pre-sale was supposed to begin Tuesday. The public sale will begin Aug. 8.

Jay-Z actually broke the news that the tour dates were being amended during a radio interview Monday on New York's Hot 97. As Angie Martinez was reading off the dates, Jay corrected her.

"That's an old list we had to push that back, because it was like, we tried to put it out in pre-order and all the lines got jammed," he told Martinez. "We pushed it back to really route it and put other dates on there. We'll probably put four New York dates there instead."

Scheduled to start in Detroit on Sept. 22, the two rap kings have pushed nearly 20 concerts ranging from Washington, D.C. (Sept. 29), Denver (Oct. 10) and Los Angeles (Oct. 19-20).

Several of the dates don't appear to have been re-scheduled yet, including Montreal (Sept. 25), Sacramento (Oct. 17) and Sunrise, Fla. (Nov. 14).

Original and New Dates (via Pitchfork):

09/22 Detroit, MI - Palace of Auburn Hills
09/24 Toronto, Ontario - Air Canada Centre
09/25 Montreal, Quebec - Bell Centre
09/27-28 East Rutherford, NJ - Izod Center
09/29 Washington, DC - Verizon Center
10/04 Philadelphia, PA - Wells Fargo Center
10/06-07 Chicago, IL - United Center
10/08 Minneapolis, MN - Target Center
10/10 Denver, CO - Pepsi Center
10/13 Tacoma, WA - Tacoma Dome
10/14 Vancouver, British Columbia - Rogers Arena
10/16 San Jose, CA - HP Pavilion
10/17 Sacramento, CA - Power Balance Pavilion
10/19-20 Los Angeles, CA - Staples Center
10/21 Las Vegas, NV - MGM Grand Garden Arena
10/25 Dallas, TX - American Airlines Center
10/26 Houston, TX - Toyota Center
10/29 Atlanta, GA - Philips Arena
10/30 Greensboro, NC - Greensboro Coliseum
11/01 Baltimore, MD - 1st Mariner Arena
11/02 Philadelphia, PA - Wells Fargo Center
11/03 Boston, MA - TD Garden
11/03 Washington, DC - Verizon Center
11/05-06 East Rutherford, NJ - Izod Center
11/14 Sunrise, FL - BankAtlantic Center
11/21 Boston, MA - TD Garden
11/23 Toronto, Ontario - Air Canada Centre
11/26 Detroit, MI - Palace of Auburn Hills
12/01 Chicago, IL - United Center
12/05 Houston, TX - Toyota Center
12/06 Dallas, TX - American Airlines Center
12/09 Las Vegas, NV - MGM Grand Garden Arena
12/10 San Jose, CA - HP Pavilion
12/12 Los Angeles, CA - Staples Center
12/18 Vancouver, British Columbia - Rogers Arena