Initially, their representatives denied any romantic involvement, but insiders have since confirmed that the two have become a couple. Short previously expressed his admiration for Streep in interviews, noting that their off-camera bond had grown naturally as they worked together.

Streep feels Short is "a gentleman, he keeps her laughing and is an all around positive person. She loves being around him," the insider says.

Meryl Streep and Martin Short are taking over New York City with one live show at a time. On Sunday, March 9, the actors were spotted attending a performance of Oh! Mary, and posed with the cast backstage.

Betty Gilpin is currently playing the titular character in the hit musical, which follows Mary Todd Lincoln in the weeks leading up to Abraham Lincoln's 1865 assassination