McDonald's Japan is promoting its two new dipping sauces by launching a Willy Wonka-style contest to win an 18-karat gold McNugget.

One lucky person will win the 1.8-ounce golden chunk, reportedly worth about $1,500. Competition entrants have to follow clues on Twitter and around Japan to find the campaign's mascot, a mysterious nugget thief called Kaito Nuggets, and the bejeweled nugget itself inside a five-piece McNugget pack.

McDonald's said in a press release:

He may appear in some of McDonald’s restaurants through the country, may throw out a ceremonial first pitch for a professional baseball game, or pay a visit to a prefectural governor making a surprising request entertaining people.

McDonald's will also gift 21 runners-up a five-piece pack of nuggets alongside the two new sauces, "Creamy Cheddar Cheese" and "Fruits Curry Sauce."

Watch the campaign's promotional video, below.

Meanwhile, we also found out last week that Pusha T wrote the McDonald's "I'm Lovin' It" jingle.

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