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Ellen surprises Hilary Duff with gift for her son: 'He's going to freak out!'

When it comes to Halloween, Hilary Duff's son Luca knows exactly how to answer the question "Who ya' gonna be?"
/ Source: TODAY

When it comes to Halloween, Hilary Duff's son, Luca, knows exactly how to answer the question "Who ya' gonna be?"

The 4-year-old has his heart set on being a Ghostbuster this year, and even though that's bound to be a popular pick, Ellen DeGeneres just made sure he'll be the coolest 'buster on the block.

Duff visited DeGeneres' show Monday, and the "Younger" star explained that Luca is "obsessed with 'Ghostbusters,' obsessed with Slimer. He learned the whole song. He's dedicated. It's so good. He's so serious about it, you guys."

And a clip of the tyke singing the theme song on Instagram certainly proves that point.

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But when Luca goes out trick-or-treating, he'll have more than a song to round out his costume. He'll have a sweet ride, too — his very own Ecto-1, the car of choice for any respectable Ghostbuster.

Ellen DeGeneres gifts Hilary Duff with the perfect "Ghostbusters" car for her son to use this Halloween.Michael Rozman / Warner Bros.

DeGeneres surprised Duff with the car, and the actress raved that her little fella will "freak out!"

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"It has steam coming out of it," she noted. "He's going to lose his mind."

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