Katherine Heigl and her two daughters had a ball in their Halloween costumes!

The 37-year-old, who's pregnant with her and husband Josh Kelley's third child, shared a photo of her girls, Adalaide and Naleigh, pouncing on their dressed up dad.

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"It was a wicked night for the Kelley girls… the Beast aka @joshbkelley had to be sacrificed to feed our insatiable appetites! Hope you all had a spectacularly wicked night as well!" Katherine captioned the pic.

The blonde beauty and her musician hubby adopted Naleigh in 2009 from South Korea and Adalaide in 2012 from the US. They announced they were expecting in June of this year.

Scroll through the gallery below to see more of Hollywood's cutest kids!