Pop star Britney Spears looks set to make a star appearance in the new series of Glee.
The show's creator, Ryan Murphy, said Britney would feature in an episode that includes some of her biggest hits.
"Britney, I think 100%, is going to be on the episode," he said. "She is going to come and do a couple of scenes."
Britney's songs will feature in fantasy sequences that start when characters have to go to the dentist and get given medicine to make them sleep.
Glee is a comedy musical set in an American high school.
It's been a massive hit since it launched earlier this year and loads of stars are fans of the show and keen to get involved.
Madonna had a whole episode and Glee album dedicated to her music, and Lady Gaga has had the Glee treatment too.
As well as getting Britney in the new series, there are rumours that former Britain's Got Talent runner-up Susan Boyle will make an appearance - as a dinner lady!