Britney Spears, Demi Lovato, Simon Cowell and L.A. Reid kicked off 'The X Factor' last night with a strong start. The first contestant on stage, Paige Thomas, was compared to Rihanna. In a not so great moment, 50-year-old Shawn Armenta took a jab at Demi for using autotune. The Justin Bieber look-a-like as originally wavering, but was given a second chance and passed. Singing boy Trio Emblem3 had Demi so smitten, that Simon had to remind her of the barrier between the judges and contestants.