With "Glee" returning and "American "Idol" whittling down competitors, Fox is airing a week of music-themed episodes of its most popular shows.

From Thursday, April 29 to Wednesday, May 5, episodes of "Bones," "Fringe," "House," "Simpsons," "Family Guy" and other series will have musical elements added into their storylines.

Among the mix, "Family Guy" will celebrate its 150th anniversary on May 2 with an extended episode featuring new and familiar musical numbers.

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