'Simpsons' to air 'Glee' show

Stars of the hit TV show 'Glee' are to get the 'Simpsons' treatment.

Some of the characters, including Rachel, Mercedes and Finn, will get the cartoon's famous yellow look to appear in the first episode of its 22nd season.

The episode will be called 'Elementary School Musical' and sees Lisa getting hooked on the showbiz lifestyle at a summer performing arts camp.