By A Mystery Man Writer
The singer shared the news while guest co-hosting "Live! With Kelly" on Monday.
Vanessa and Nick Lachey are expecting a second baby -- a girl - Los Angeles Times
Nick and Vanessa Lachey: A Relationship Timeline
Nick Lachey: I'll coach Vanessa Minnillo in the delivery room – but only from the waist-up – New York Daily News
Nick Lachey & Vanessa Expecting Baby Together!
Vanessa Minnillo and Nick Lachey - FamousFix.com
Nick & Vanessa Lachey: Pics of the Couple – Hollywood Life
Nick Lachey, Vanessa Minnillo expecting first child
PHOTO Nick Lachey and Vanessa Lachey announce baby girl's birth
Nick Lachey, Vanessa Minnillo Lachey Pregnant
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Vanessa and Nick Lachey's Relationship Timeline
Nick & Vanessa Lachey Welcome Baby Girl