updated 04/02/2012 AT 9:00 AM ET
•originally published 04/02/2012 AT 10:15 AM ET
“We all know he’s a ham on camera,” she tells PEOPLE, “but I see this side of him that’s softer, almost fatherly or big brotherly.”
The country singers, who married in May of last year, have been together since 2005. And Shelton, Lambert said, is the same off camera as he is on camera. But this “softer” side surprised her.