Sarah Jessica Parker performed a duet with her son
The `Sex and the City` star - who has son James Wilkie, nine, and twin daughters Tabitha and Marion, two, with the actor - organised a surprise party on 18.03.12 at New York`s River Cafe venue.
However, the highlight of the evening was when the actress and son James took to the stage to perform a rendition of The Beatles classic `Here Comes The Sun` as a gift for Matthew.
An insider told the New York Post newspaper: "He`s a little Broadway star in the making!"
Among those in attendance at the star-studded bash were actors Victor Garber and Brooks Ashmanskas, `30 Rock` executive producer Marci Klein and `Smash` composers Scott Wittman and Marc Shaiman.
However, despite James` performing skills, Matthew recently admitted his twin daughters were "more self-sufficient" because they cannot always both get attention at the same time.
He said: "It`s kind of sad with twins; they learn to, like, lie on the pillow because you can`t always hold them both. They`re more self-sufficient. They learn to take care of themselves.
"They are really very attached to each other. They`re really cute."
Source: Sarah Jessica Parker performed a duet with her son