Miranda Lambert and Evan Felker stepped out together in New York.
The former "Nashville Star" finalist wore an embroidered floral minidress and boots, while Felker sported a button-down shirt and jeans.
Us Weekly said Felker was also seen whispering into Lambert's ear during the night.
"They looked very happy together. They looked closer as the night went on," a source said.
Lambert and Felker were first linked in April following Lambert's split from singer Anderson East.
The Turnpike Troubadours are opening for Lambert on her Livin' Like Hippies tour, and she and Felker reportedly developed a romance on the road.
Felker filed for divorce from wife Staci Nelson in February after less than two years of marriage.
Lambert was wed to country star Blake Shelton prior to her relationship with East.