'X Factor' terrific twosome Britney Spears and Simon Cowell hit 'The Tonight Show With Jay Leno' to talk about how their mutual makeup artist helped get Brit Brit to take the judging gig. Blah blah blah, right? We've heard this story before. What was really interesting about this delightful duo was their open discussion of their quirks, like Brit Brit's disdain for socks and the fact that Cowell wants to be cryogenically frozen and had a medium assess the vibe of his home. No, seriously!