Credit: Dave Kotinsky/Getty Images

How's this for a magic trick?

For 16 months, David Copperfield has kept a big-time secret absolutely concealed: He's a dad!

The magician, 54, and model girlfriend Chloe Gosselin welcome a baby girl back in spring 2010, his rep confirmed to the UK's Daily Mail.

"Forget vanishing the Statue of Liberty, David's next illusion will be disappearing the dirty diaper. A lot more practical," the rep quipped.

Copperfield and Gosselin, 26, were first spotted with their little girl (whose name has not been revealed) in New York, the Bahamas and Las Vegas last month.

It's the first child for Copperfield, who once dated another supermodel, Claudia Schiffer.