OAK BROOK, Ill. (AP) -- Fast food chain McDonald's Inc. says it's giving out millions of free samples of its two new chicken menu items.

On May 15th, the Oak Brook-based restaurant chain will give customers samples of its "Southern style" chicken biscuits and sandwiches.

Customers can get the free lunch and breakfast items when they buy any medium or large drink at the company's 14,000 U.S. restaurants.

The promotion's part of McDonald's efforts to convince customers to try their expanded chicken menu.

McDonald's says it expects to give away 8 million breakfast and lunch sandwiches during the daylong event.

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