Connick Jr. joined the panel for the singing competition show's upcoming 13th season.
But newcomer Connick Jr. told E! News there is not a hint of tension on the show's Los Angeles set this season.
"It's three people who are having a friggin' ball," Connick Jr. said.
"The show is really goofy, it's really serious and it's real fun. It's really heartfelt. It's everything you want 'Idol' to be," he told E! News. "It's the easiest gig in the world. It really is. Look at what we do. We go and we get hair and makeup done, wear nice clothes and go sit and listen to singers and tell them what we think. Let's get real here."
Connick Jr., who appeared twice on "Idol" as a mentor, called his move into a judge's chair "seamless."
"I really like them," he said of Lopez and Urban. "We'll finish shooting and we'll go have lunch and we all sit at the same table, talking about Jen's kids, my kids and Keith's kids."