The cast of 'Glee' are celebrating today (April 19) after the show's contract has been renewed for another two years.

Although the stars of the show have gradually started to change as the characters graduate high school and move on with their lives, it will continue for a fifth and sixth season.

Fox entertainment chairman, Kevin Reilly, released a statement about the exciting news and confirmed that 'Glee' has a "significant impact on popular culture" and is still as popular so it will remain on our television screens for another couple of years yet:

"Glee debuted as the first and only successful musical comedy series on television, and more than four years later, it continues to defy genres, break new ground and have a significant impact on popular culture. Week in and week out, Ryan Murphy, Brad Falchuk, Ian Brennan, Dante DiLoreto and the entire Glee team deliver a series that not only delights and surprises fans, but also inspires them to talk about, share, debate and engage with the show -- and I’m absolutely thrilled to have them on board for another two seasons.”

One of the programme's lead actors, Cory Monteith (who plays Finn Hudson), was recently admitted to a rehabilitation facility to deal with a substance addiction. His co-star, Mark Salling (Noah Puckerman), spoke out about Monteith's decision and explained: "It takes balls . . . to go through that publicly. Period. It takes balls to go through that privately, but to go through it publicly like that -- balls."

Watch the 'Glee' cast's cover of 'Say' from a recent episode here: