Krispy Kreme isn't the only establishment that will be celebrating National Donut Day this week. Burger King is also taking advantage of the holiday by releasing the first flame-grilled donut ever, the Whopper Donut.

In short, the donut is merely BK's signature Whopper burger with a hole cut in it. When you purchase the item, though, you'll also get a complementary mini slider, aka the donut hole.

The Whopper Donut is available Friday, June 1, only at participating Burger King locations in New York, Los Angeles, Miami, Boston, and Salt Lake City.

128 Tremont Street, Boston, Mass. 1100 - 5th Street, Miami Beach, Flo. 1601 N. Hacienda Boulevard, Los Angeles, Calif. 327 West 42nd Street, New York City, NY. 2450 S 1900 W, Salt Lake City, Utah

In related news, Starbucks plans to open a new store every 15 hours in China.