On "Dancing With the Stars" Monday (Oct. 5), dancer Allison Holker and husband Stephen "Twitch" Boss, who is Ellen DeGeneres' DJ, revealed that they are expecting their first child together.

On "Ellen" Wednesday, DeGeneres played a prank on Boss by claiming she had the ultrasound to show off to the viewing audience. For a split second, Boss looks like a deer in the headlights.

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Until the talk show host reveals the ultrasound ... and it's a little dancing Twitch, hat and all. Well played, Ellen.

Boss and Holker met five years ago on "So You Think You Can Dance" Season 7 and married in 2013. Their baby is due in March; the pair also have Holker's daughter Weslie from a previous relationship.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."