Britney Spears joining Fox's 'The X Factor'

NEW YORK (AP) — Britney Spears and Demi Lovato are joining the judging panel on "The X Factor" this fall, part of Fox's effort to boost its underperforming music competition shows.

The network's executives, in presenting next season's schedule to advertisers on Monday, also promised changes for "American Idol." While "Idol" remains Fox's centerpiece, as it has been for the past decade, it has lost a quarter of its audience this year. Keep Reading