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E! News anchor and TV personality Giuliana Rancic and her reality TV star and entrepreneur husband Bill Rancic have welcomed their first son into the world.

Edward Duke Rancic, who weighed 7 pounds and 4 ounces, was born in Denver Wednesday via a gestational surrogate.

"The 'Duke' has landed! Edward Duke Rancic was welcomed into the world last night at 7lbs 4oz. G & I feel blessed beyond words … We did it!" he posted to his Twitter early Thursday.

Both Giuliana and Bill were in the delivery room for the four-hour labor and birth, The AP reported.

The couple, who wed in Italy in 2007, now stars in the Style Network reality show "Giuliana & Bill." While Giuliana, 37, had been a red carpet fixture for years while at E!, Bill, 41,gained fame as the winner of the first season "The Apprentice" in 2004.

In 2008, the couple launched a television production company called You and I Productions, which produces reality and scripted programming. In 2010 they also wrote a book together entitled "I Do, Now What?: Secrets, Stories, and Advice from a Madly-in-Love Couple."

The birth of their son was happy news for the couple after she suffered a miscarriage in 2010.