Her husband filed for divorce on September 25, but Emmy Rossum has already moved on to a new man. The 23-year-old actress, who reportedly split from music business exec Justin Siegel in August after a year-and-a-half secret marriage, has been cozying up to Counting Crows front man Adam Duritz, 45. The pair were spotted on a romantic dinner at Dos Caminos restaurant in New York’s SoHo neighborhood earlier this month, and on September 23, the Phantom of the Opera starlet and the singer made sweet music with a duet at the National Parks Conservation Association’s concert to celebrate National Parks Week in New York’s Central Park.

“They were staring into each other’s eyes,” an onlooker tells In Touch of the couple as they sang “Going Back to Georgia.” After the Counting Crows finished their set, Emmy and Adam brought the sizzle offstage. “They went back to his trailer together. They had their arms around each other and were kissing,” an insider tells In Touch. “They are totally dating and aren't afraid to show it.”

The seasoned lyricist is no stranger to gorgeous women - his exes include Jennifer Aniston and Courteney Cox!