Ashton Kutcher partying with "Two and a half men" co stars

Aston Kutcher is with his "Two and a half men" co stars in NYC.

Jon Cryer, Angus T. Jones and Aston Kutcher went to CBS in New York City to party and welcome Kutcher as a new cast member. Ashton tweeted First cast argument 2.5 men (@ Carnegie Hall (Isaac Stern Auditorium / Ronald O. Perelman Stage) w/ 39 others) [pic]: http://4sq.com/jtCIri.

The photo is taken by Ashton inside the Carnegie Hall, Ashton replaced Charlie Sheen after Sheen had a feud with CBS and fired him.