Sons Dexter and Frank are the first children for the married singers

By People Staff
Updated December 08, 2006 05:15 PM

Singers Diana Krall and Elvis Costello welcomed twins on Dec. 6, PEOPLE has learned.

Boys Dexter Henry Lorcan and Frank Harlan James were born in New York City, according to a rep for the couple, who adds, “Mother and sons are doing splendidly.”

Krall and Costello said in a statement, “We are ecstatic!”

The babies are something of a third-anniversary gift for Krall, 42, and Costello, 52, who wed in London on Dec. 5, 2003.

In September, Krall told PEOPLE she’s genetically disposed to a double delivery: “I have twins on my mother’s side as well.”

And she knew even then that she wouldn’t dress her kids up in matching outfits: “Nah,” she said with a laugh, “I won’t be doing that.”