Demi Lovato Joins Britney Spears as 'X-Factor' Judge

Demi Lovato has officially been signed on as judge in the X-Factor. The actress-and-musician will be in New York City today to announce her joining the show- same day as Britney Spears'.

Although the 'So Random' actress is scheduled for a musical tour in the summer, that will not impede her appearance on the show in any way.