Rob Halford to appear in The Simpsons

Judas Priest frontman Rob Halford will appear in an upcoming episode of The Simpsons.

The pending episode is slated to premiere on television screens next year.

As Blabbermouth.net additionally reports, “The episode will also star Will Arnett, director Judd Apatow, and his frequent costars Leslie Mann, Paul Rudd and Seth Rogen."

Halford will sing a parody of Judas Priest track ‘Breaking The Law’.