The secret is out.

Starbucks customers can get the coffee chain's popular Pumpkin Spiced Latte before it officially goes on sale on September 3.

All customers have to do is give their barista the special code PSL 10.

It is all part of the 10th anniversary celebration of the popular flavor.

A Starbucks source told London's Daily Mail that the first person to give a store the special code will have their name put up on a plaque that will go up in the front of the store.