The television host and his former girlfriend, Shayna Taylor, were spotted enjoying lunch together in Positano, Italy.
The longtime host was conspicuously absent from Monday's announcement that Katy Perry, Lionel Richie and Luke Bryan were returning.
Last season's judges Katy Perry, Luke Bryan and Lionel Richie will all return for the new season, premiering spring 2020.
The 'American Idol' alum's real-life husband stars in the video.
The 'American Idol' alum is back with a California-infused summer jam!
The couple dish on their upcoming August wedding to ET.
The 36-year-old singer beat out Bo Bice to win the show's fourth season in 2005.
The singer also praised the dancers who dressed up as Katy Perry to support his performance.
The season four winner returned to the 'American Idol' stage for a powerhouse performance of her new single.
Laine Hardy beat out Alejandro Aranda and Madison Vandenburg for the top spot during Sunday's finale.
The newest champion of 'American Idol' opens up to ET about how he's feeling moments after the season 17 finale.
See which of the final three contestants took home the victory Sunday night.
The season 4 winner returns to the "American Idol" stage for powerhouse performance of her new single.
The judges, top three contestants and eliminated singers opened up to ET backstage. 'American Idol' airs Sundays and Mondays on ABC.