Coincidentally or not, Jay-Z is going on tour with Justin Timberlake this summer.
Now I'm not an expert on the Annie story, but isn't Daddy Warbucks supposed to be an older gentleman? Someone in his 50s, who also happens to be filthy rich, and is usually bald? Timberlake certainly has the "filthy rich" part down, and I guess he could always shave his head for the role, but he's definitely nowhere near 50 years old, nor does he look like he could be.
Of course, the film's producers might be taking some creative liberties with the story, and aren't married to the source material. So the casting of Timberlake could be one of those creative choices.
We'll find out eventually if he is cast in the film.
In past film adaptations of Annie, Warbucks has been played by the likes of Albert Finney and Victor Garber, who both were in their late 40s/early 50s when they played the role, and also shaved their heads for it.
Sony Pictures has set an official release date for Annie, for December 25, 2014.