WiseGuys has the Chicago pre-sale password: During this exclusive pre-sale you have got the chance to order concert tickets before anyone else! 
You don’t want to miss Chicago’s concert in Clarkston do you? Tickets will sell fast once they go on sale: during the presale you can order your tickets before they become sold out!
Here are the Chicago concert details:
Chicago
DTE Energy Music Theatre
Clarkston, MI
Thu, Jul 25, 2013 07:30 PM
Onsale to General Public
Start: Sat, 04/20/13 10:00 AM EDT
Live Nation Mobile App Presale
Start: Fri, 04/19/13 10:00 AM EDT
The presale ends at: Fri, 04/19/13 10:00 PM EDT
Venue / Live Nation Presales
Start: Fri, 04/19/13 10:00 AM EDT
The presale ends at: Fri, 04/19/13 10:00 PM EDT
You can use this presale passwords and information to buy tickets:
