It's a boy for "So You Think You Can Dance" choreographers Tabitha and Napoleon D'umo!

PHOTO: Check out exclusive photos of the baby boy

On August 10 at 10:01 p.m. PST, Tabitha, 38, and Napoleon, 43, welcomed son London Riley, who weighed 7 lbs., 9 oz. and measured 20 inches.

"Tabitha was amazing pushing for three hours," Napoleon tells Us Weekly exclusively. "She was like an Olympian and he is our gold medal."

"I'm so proud I can't stop the mix of emotion going back and from crying to smiling," Napoleon adds.

VIDEO: Host Cat Deeley dishes on So You Think You Can Dance

Dubbed Nappytabs, the Sherman Oaks, California-based couple -- who began dating in 1994 -- received a Primetime Emmy Award for Outstanding Choreography in 2011. They were also supervising choreographers on "America's Best Dance Crew" for the first five seasons.

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