The former American Idol winner looked gorgeous in a floral jumpsuit as she belted out tracks at the Ravinia Festival in Highland Park, Illinois.
Taking to Twitter after her performances, she said: "What an incredible night @RaviniaFestival Such a great crowd & that orchestra took it all to a whole new level! Thanks to all who came out!!
"Such an amazing second night @RaviniaFestival I really love the Chicago area & the audiences here! You guys rock! Can't wait to come back!
Carrie, 31, and husband Mike Fisher announced their happy baby news at the start of the month via Twitter. It will be their first child together.
Back in 2013, the 'Two Black Cadillacs' singer told People magazine that Mike would make an "incredible dad" when the time came.
"I know when we do have kids, it's gonna be wonderful. I'm excited about our new house and our farm. I dream about those things."
Carrie and Mike married at the Ritz Carlton Reynolds Plantation in Georgia in July 2010.
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Stars who announced pregnancies in 2014!
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