4-year-old boy can't contain emotion during stepmom's heartfelt wedding vows

Two U.S. service members tied the knot over the weekend, but it was the groom's 4-year-old son who stole the show.

Emily Leehan, a senior airman in the Air Force, stood at the altar at Quincy Cellars in New York on Saturday to marry Marine Sgt. Joshua Newville and recited separate vows to his son Gage.

As she shared her meaningful words, her soon-to-be stepson became overwhelmed with emotion, welled up with tears and embraced her.

"When she started reciting the vows, that's when the emotion took over and he lost it," Newville told ABC News. "The whole day was pretty emotional, so I was just trying to keep myself together and keep him together."

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