According to the latest issue of Weekly Shounen Jump magazine, Tamura Ryuhei’s action comedy series, 「Beelzebub」 will receive an anime adaptation. This single episode special will be shown at the Jump Super Anime Tour 2010 this Fall.

*Synopsis from Manga-Updates:

The story follows the “strongest juvenile delinquent” as he watches over the devil king’s son (and future devil king) with the fate of the world hanging in the balance.

[Source]