CNN — Burger King has figured out how to serve Whoppers upside-down in 1980s-era packaging and turn that into a marketing opportunity. In a partnership with Netflix's "Stranger Things," the hamburger chain announced it will soon sell an "Upside-Down ...

Burger King is making its first major update to the Whopper in about a decade. The Miami-based chain said it has refined its signature flame-grilled hamburger following customer comments, according to a news release on Thursday, Feb. 26. Burger King ...

It happened completely by accident, too. Burger King updates Whopper with premium bun, thicker mayo, and sturdier packaging. Customer feedback prompted changes; “The Whopper being smushed... we’ve seen it,” said President Tom Curtis. Improvements ...

From its surprisingly expensive debut in the 1950s to bizarre marketing campaigns involving mold and fake menu removals, the Whopper has become far more than just another burger in American fast-food culture.

Burger King is buffing up the Whopper for the first time in a decade. The improvements come after the fast-food chain's president Tom Curtis earlier this month invited customers to call or text him with feedback about their experiences at Burger King.