Demi Lovato Signs On As Fourth Judge On 'X Factor'
While Fox hasn't confirmed either hiring, it's a done deal and the 19-year-old singer is expected to make an appearance at the network's upfront presentation in New York City on Monday alongside Spears.
Lovato is scheduled to tour this summer, but her schedule shouldn't interfere with filming for the show.
Lovato and Spears will join Simon Cowell and L.A. Reid.
The hosts have yet to be announced. However, Cowell has hinted that the show will feature one male and one female host who can play off each other.
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