McDonald’s has a new toy in their Happy Meal that will give children not just one treat, but two. The fast food chain has had several coveted Happy Meal toys in the last few months. In September, children could collect mini Croc key chains.

What’s better than a Happy Meal with one toy? A Happy Meal with two toys, of course! This holiday season, McDonald’s is handing their customers double the fun—but it isn’t necessarily for the reason you’d think.

McDonald’s embraces the gift-giving spirit by introducing a limited-time Happy Meal that includes two toys. The company announced that it would sell “Pet Simulator Happy Meals” with two toys at participating restaurants nationwide starting Tuesday.

The truth is, no one can really agree on who first invented the iconic McDonald's Happy Meal. Here's why the history behind it is so complicated.