Connick will be sharing the panel with Jennifer Lopez and Keith Urban, as Nicki Minaj and Mariah Carey both announced in May they would not be returning to the show. Former Idol judge Randy Jackson will be returning to the show as a mentor for season 13.
On August 29 Connick retweeted a comment from Ellen DeGeneres that gave his followers a clue about the singer joining the judging panel.
"@HarryConnickJr. might be a judge on American Idol! He loves to follow in my footsteps. It's like having a boring little brother," the TV host wrote.
During an interview in May Connick shared his approach to judging contestants had he been asked to join the panel.
"I think you need to be completely honest and I think you need to be diplomatic," he said. "I think there’s no reason to be mean, but it's called being a judge."