(Cover) - EN Showbiz - Kate Hudson and Sarah Jessica Parker will appear in the next season of Glee.

The Hollywood actresses were confirmed for season four of the hugely popular Fox TV series today. The network's entertainment president Kevin Reilly made the announcement in a conference call.

Kate will reportedly feature in six episodes, while Sarah has signed up to star in an episode in the fall.

No information about the actresses' characters has been revealed as yet. However, a few details were released about the set-up of the new season.

According to Reilly, Glee will focus on a "show within a show", following some of the McKinley High graduates as they attend the New York performing arts school.

The storyline will also feature "some new faces" as they switch back to Ohio.

The cast of Glee have been emotional filming the final scenes for season three. Some have broken down in tears while working on the last episodes as many of the characters are in their final year at high school and will be going to college or full-time jobs.

"There [are] a lot of tears on set, randomly. We had a rehearsal and even our choreographer had some tears," cast member Harry Shum Jr. previously revealed.

"He couldn't even get through the rehearsal... We've been through a long journey." (C) Cover Media