The weeklong celebration includes a different freebie every day.
The Royal Perks appropriately start on May 28, which is National Hamburger Day.
BK loyalty program members who spend at least 70 cents can get a free hamburger that day.
Credit:Joe Hendrickson/Getty Images
For a limited time starting May 13, you might purchase the pie at Burger Kings nationwide.
The first Burger King opened in Miami, Florida, in 1954.
Happy birthday, BK.
