To celebrate the release of the new Mac Jr, and Grande Mac -- smaller and larger versions of their signature Big Mac hamburger -- McDonald's will be giving away 10,000 bottles of their coveted Secret Sauce found on the iconic sandwich, today only.

Those seeking a bottle of the never-before-released sauce are being told to download an iMessage app to find the select locations where bottles are available. BUT, we've got you hooked up with the list of Quad Cities region McDonald's in Illinois, Iowa and Wisconsin where you can score a bottle.

Illinois
1313 N State St, Belvidere, IL 61008-2002
4623 State St, Rockford, IL 61108-2118
4403 Harrison Ave, Rockford, IL 61108-7927
616 E Green St, Champaign, IL 61820
627 N Western Ave, Peoria, IL 61604
1156 Vaughn Rd., Wood River, IL 62905

Iowa
506 Allison St. Charles City, IA 50616-3709
4105 Morningside, Sioux City, IA 51106-2945

Wisconsin
6631 W. North Ave, Wauwatosa WI 53213
1101 N Central Ave, Marshfield, WI 54449-1504
2922 N Pontiac Dr., Janesville, WI 53545
2128 8th St S, Wisconsin Rapids, WI 54494-6153
770 W. Johnson St., Fond du Lac, WI 54935
2860 New Pinery Rd., Portage, WI 53901
6910 Odana Rd., Madison, WI 53719
9398 WI-16, Onalaska, WI 54650-8561
1587 Shawano Ave., Green Bay, WI 54303-3218

Just make sure if you go to tell the crewperson the phrase "There’s a Big Mac for that.

The McDonald's website says the bottles will be "awarded on a first come, first served basis. Quantities are limited and may vary by restaurant."