The Scot has become a global sensation after wowing judges and TV viewers with her amazing singing talents on the show - and she'll learn if she's the winner of the contest on Sunday.
Reports suggest the pressure is getting to the 48 year old and she allegedly fired off at reporters who quizzed her about her overnight fame outside her London hotel.
Boyle's handlers have since requested the singer be moved to a safehouse so she can prepare for the final in peace.
A spokesman for the show says, "We take the wellbeing of all contestants very seriously."
And Boyle will have a little Hollywood star power support when she goes for gold on Britain's Got Talent - Demi Moore is a big fan.
In a message posted on her Twitter.com account, the actress writes, "2 the lovely Susan Boyle (sic) -Trust that the whole world is rooting 4U whatever the outcome! U have nothing 2 lose just keep sharing your light! (sic)."