
A source says the couple — who lunched about three weeks ago in L.A. -- met up after her Thursday night concert at the Nokia Theatre in Times Square.
The duo, who were sipping Dom Perignon and Pink vodka throughout the night, “didn’t come together, but left together,” the witness adds.
When reached by Us, a rep for Hartnett had no comment. Rihanna's rep couldn't be reached for comment.