updated 03/05/2012 AT 1:00 PM ET
•originally published 03/05/2012 AT 2:45 PM ET
“Thanks to everyone for all the well-wishes! It means a lot to Vanessa and I,” the Sing-Off host, 38, Tweeted. “Who’s guessing? Boy or girl?”
His wife Tweeted her own note to fans who may have missed the Live with Kelly appearance.
“Finally, Nick and I are ready to share our news … We have been blessed with a little angel!” the Wipeout host, 31, writes. “We can’t wait to meet Baby Lachey!!!”
This will be the first child for the couple, who wed July 15, 2011.