Happy Meals are no longer just for kids as McDonald's, for the first time launches the famous concert for grownups!

The Happy meal for adults will feature a collectible toy inside the package, just like the kids' version. However, the meal size will suit a grownup as you get offered a Big Mac or 10-piece Chicken McNuggets plus fries and a drink.

The concept is a collaboration with Cactus Plant Flea Market, and the four collectible figures in the box will be Grimace, the Hamburglar, Birdie, and the new character Cactus Buddy.

The Happy Meal box comes in a unique design where the two companies have merged their logos and put Cactus Plant Flea Market's signature style around the golden arches of McDonald's.

Like the version for kids, the box's design is colorful and playful.

The concept will be launched on October 3 in McDonald's restaurants in the United States and can be ordered over the desk, in Drive-thorough, and through the app.

The Happy meals are, however, only available as a limited edition and might be sold out fast. So if you want to collect all the toys, hurry up!

"We're taking one of the most nostalgic McDonald's experiences and repackaging it in a new way that's hyper-relevant for our adult fans," said McDonald's USA Chief Marketing and Customer Experience Officer Tariq Hassan about the concept.

"I can't wait to give fans a unique piece of art and culture as we dive headfirst into the dynamic world of Cactus Plant Flea Market together next week. With menu favorites like the Big Mac and McNuggets at the center of this collab, this is another way we're reigniting a new generation's love for our food and the brand."

If you order your Happy meal for adults using the McDonald's app, you will be entered into a prize draw with the chance to win exclusive merch like t-shirts and a Grimace Chair.

For those who can not wait to get their hands on some cool merch like hoodies, t-shirts, and other collectibles, you can order them online starting October 3 at 11 a.m. ET.