Discount grocery giant Aldi is getting into the delivery business.

German-based Aldi, whose U.S. headquarters are in Batavia, Illinois, is partnering with online grocery delivery specialist Instacart on the pilot program, which will launch later this month in Atlanta, Dallas and Los Angeles. More cities could be added later.

"Our partnership with Instacart is another example of Aldi expanding our commitment to customer convenience and value," Jason Hart, Aldi’s CEO, says in a news release. "We know customers are looking for new ways to save time and money. Instacart provides easy access to our low prices at the click of a button."

Until Sept. 30, users of the service will get $20 off their first Instacart order by using the code ALDIDELIVERY.

Aldi’s entry into grocery delivery follows the June announcement that online retailer Amazon was buying Whole Foods Market.

Also in June, Aldi announced plans to build 900 new stores in the U.S. in the next five years and Aldi’s German discount rival Lidl began opening its first U.S. stores.