Ira Glass on "The Simpsons"? As Montgomery Burns would say, "Excellent."

Rumor has it that Ira Glass of This American Life is making a cameo appearance on the season premiere of The Simpsons. "Elementary School Musical" also co-stars . . . Jemaine and Bret. All you Flight of the Conchords fans may commence squeals of joy, while you Ira Glass fans continue your enthusiastic applause.