McKibbin finished third behind Justin Guarini and Kelly Clarkson on the first season of the reality TV show.
The singer, 36, and legendary music producer, 70, tied the knot last year.
The "American Idol" champ fired back after a Twitter user hinted her marriage "didn't work" because of her professional ambitions.
On Tuesday's “Live with Kelly and Ryan,” the host thanked fans for their well-wishes after a headline-grabbing day off.
The champion captured the first remote series final, but the host's difficulties also grabbed viewers' attention.
"When I'm in my living room I really have to pump myself up," the contestant said after singing the Billie Eilish hit.
Amid the coronavirus pandemic, these reality competition shows plan to conclude runs with Zoom performances and video chat reunions. But how will it work?
Lionel Richie said advancing the Nepal-born singer to the top 20 was "the easiest decision" after he sang a Bob Marley classic.
Katy Perry said she no longer recognized the contestant ― “and that’s a good thing.”
A mismatched Courtney Timmons and Zack Dobbins seemed doomed from the start.