Jennifer Hudson wants to guest star on 'Glee'.

The Oscar-winning actress is a huge fan of the High School Musical TV show and would love to follow in Gwyneth Paltrow's footsteps and make a cameo appearance as a substitute teacher.

Discussing the possibility of appearing on the series, Jennifer said: "That would be so cool. It's such an amazing show, so hopefully. Maybe I'd play the substitute music teacher."

'Glee' creator Ryan Murphy recently revealed he was so impressed with Gwyneth's performance - when she appeared as substitute teacher Holly Holiday in a storyline which aired last year - she has been asked to return.

He said: "Gwyneth is coming back for two episodes. She's coming back specifically to date Will [Schuester played by Matthew Morrison].

"Those two have become really good friends in real life and had really good chemistry. She's coming back as a sex education teacher. "Gwyneth and I are emailing, talking every week, 'What are we gonna sing?' We're trying to do something fantastic."

He has also confirmed Anne Hathaway will make an appearance - after she approached him looking for a role, suggesting she could play the lesbian aunt of Chris Colfer's character Kurt.