From 2:00 p.m. - 7:00 p.m. you can buy any handcrafted beverage (Grande or larger) and you'll get a second drink for free!
Starbucks said the deal includes regular and holiday flavors.
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But there is a catch. You have to use the Starbucks app to get the deal.
Starbucks said if you order ahead of time, the offer will automatically load for current rewards members.
VIDEO: Take a look inside the World's Largest Starbucks
On Friday, Starbucks will open their newest, largest location in the Chicago Loop.
Chicago's roaster will be the largest of a limited number of specialty cafes around the world offering customers an immersive and sensory experience from bean to cup.
Each floor offers customers a different take on caffeine, from watching the roasting process on the first floor all the way up to special Chicago-inspired coffee cocktails on the fourth floor.