The songs to be featured in an upcoming episode of the musical comedy show Glee have been accidentally revealed by a production team member on his Last.FM profile. The producer’s assistant has been listening to tracks labelled as “Glee Guide Vocals” for the songs ‘Four Minutes To Save The World’, ‘Vogue’, ‘Express Yourself’ and a mashup of ‘Borderline’ and ‘Open Your Heart’. He also has a track listing for Jayma Mays, Cory Monteith, Matthre Morrison, Lea Michelle, Naya Rivera and Jonathan Groff singing ‘Like A Virgin’.  It was announced that Groff (a well-known Broadway musical star) would appear in the series at the Comic Con panel last July.

The spoilery tracklist also contains Groff singing Highway To Hell with the glee club’s rivals Vocal Adrenaline, and a few versions  of the Beatles song ‘Hello,Goodbye’ with Lea Michelle.

Fans were excited to see Rivera, who plays Cheerio Santana, get her own lead vocal. On the Livejournal group ‘gleeclub’ user charmqn86 wrote “Naya getting a credit = pumping my fists in jubilation”.

The Madonna eisode will air when Glee returns to Fox in April.