Restaurant Brands International's (QSR - Get Report)  Burger King division is launching a Fruit Loops shake. Yes, for real. 

As TheStreet reported earlier this month, the shake will be available for a limited time only at participating restaurants nationwide starting Monday for a recommended price of $2.99. It's made from vanilla-flavored soft serve ice cream, Fruit Loops cereal pieces (compliments of Kellogg's (K - Get Report) ) and sweet sauce.

Burger King is no stranger to thinking outside the box when it comes to fast-food.

The company teamed up with beverage and snack giant PepsiCo (PEP - Get Report)  last year to develop what it called Mac n' Cheetos. The snack mashup was a portable combination of mac n' cheese covered with crispy Cheetos flavor. Last March, it unveiled the "Angriest Whopper," a burger with a red bun, jalapenos and hot sauce.

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And in September 2016, Burger King sold a black-bunned burger filled with Kraft Heinz's (KHC - Get Report) A1 steak sauce called the Halloween Whopper for a limited time. 

King of weird, that's for sure.

Updated from April 4 with new details.