'Glee' teacher Sue Sylvester is getting married.

The scheming cheerleading coach in the musical drama will soon tie the knot in a surprise ceremony, according to Jane Lynch - the actress who portrays her.

Jane said: "Sue gets married - that's all I'm going to tell you. I probably shouldn't have said anything!"

Despite her nervousness about letting the plot line slip, Jane claims the wedding will take place within the next three or four episodes on US television but won't feature a big musical number.

The 50-year-old star - who married her psychologist partner Lara Embry earlier this year - also spoke about Gwyneth Paltrow's upcoming 'Glee' cameo, calling the 'Shakespeare In Love' actress "amazing".

She told People: "I did a couple of scenes with Gwyneth. She's got the goods. She can sing, she can dance. I really was blown away. I saw them doing a mash-up of 'Singin' in The Rain' and 'Umbrella', and they are singing and dancing their hearts out, and Gwyneth is leading them. She's amazing."

Gwyneth will play a substitute teacher who fills in for Spanish teacher and Glee club coach Will Schuester, portrayed by Matthew Morrison, and Jane has revealed the two characters quickly develop a rivalry.

She explained: "She's a substitute teacher for Will. Will gets the monkey flu and I Expose him to it - I turn a sneezing kid on him so that he gets the monkey flu.

"So Gwyneth Paltrow is the substitute, and the kids start to all love her. So there's kind of a rivalry between Schue and Gwyneth's character."