Hey, it's true! Mercede Johnston really did leave that MySpace message saying Sarah Palin considers her "white trash" just because her bro Levi knocked up Bristol and her mom Sherry is a pill-popper.

We were pretty convinced by the claim that Mercede and mom Sherry were being barred from seeing baby Tripp. But now, we see that Mellissa Wilfong has since changed her MySpace profile to private, and left us this little note: "If your here to steal comments and Gawk ...get lost!"