Referring to Klum, the Spice Girl said, "She's lovely, absolutely adorable", during the filming of the new season in New Orleans, reported Access Hollywood.
"She's a mom like me," Brown added.
While Klum said she doesn't expect the two to have any drama.
"I don't think the claws will come out. We might have claws, but I don't think they will be scratching!"
Klum has years of judging experience on "Project Runway" but she still had butterflies on her first day of work at "America's Got Talent".