While the "Used to Love You" singer unsurprisingly stunned in a semi-sheer, black and silver flower-print Yanina Couture gown, Shelton ditched his usual country duds, looking classier than ever before in a super stylish black-on-black three-piece suit.
The two could not have looked cuter together as they socialized with the star-studded gathering of celebs, business moguls and political titans that gathered together for a fun night and a great meal prepared by celebrity chef Mario Batali. The pair were even spotted chatting with Food Network star Sandra Lee and her longtime love, New York governor Andrew Cuomo.
After the formal dinner, held in honor of Italian Prime Minister Matteo Renzi and wife Agnese Landini, Stefani took the stage to perform.
She was also joined by her handsome beau, who accompanied her on the guitar as they sang their duet, "Go Ahead and Break My Heart."
Blake Shelton with Gwen at the the state dinner. pic.twitter.com/k8yaouTCpF— Neil King (@NKingofDC) October 19, 2016
After the performance, Stefani got to shake the hand of the commander-in-chief himself in an adorable photo-op -- and, yes, it is already her new Twitter photo.
It's hard to deny just how cute Stefani and Shelton are together, which is why some fans of their whirlwind romance are freaking out over the news that the No Doubt frontwoman is coming back to The Voice as a coach next season! Check out the video below to hear more.