Simon Cowell Not Worried About Britney Melting Down

5/15/2012 7:00 AM PDT BY TMZ STAFF

Simon Cowell isn't bothered one bit at the prospect of Britney Spears falling apart during a live episode of "X Factor" ... insisting whatever happens will be ratings GOLD!!

Simon was leaving ABC Kitchen in NYC last night after a dinner date with the other new "X Factor" judge Demi Lovato  ... when we asked the $15 million question -- "Are you nervous with Britney being on live TV?"

Some people are concerned about Brit because of her ongoing mental health issues ... highlighted by the fact she's still under a conservatorship. Simon is NOT one of those people.

As for dinner with Demi -- we're guessing Simon paid ... since she's only scoring a mere $1 million for the gig ... table scraps compared to Britney.