Conditional Formatting Question

I have a range A1:A20. Each cell in this range contains a number between 1 and 100. I'd like to be able to format this range so that the top 3 or largest 3 numbers appear in red. Is there a way to do this? Thanks!

I'm not sure how to do this with 1 condition, but here is how to do it with 3 (Formula Is):

=A1=LARGE($A$1:$A$20,1)

=A1=LARGE($A$1:$A$20,2)

=A1=LARGE($A$1:$A$20,3)

Tried those conditions but that just turned the number in A1 red.

That still only formats the 1st cell in the range. The format that I'd like to apply is to change the color of the the 3 largest numbers in the range A1:A20 to red. Thanks

Select cell A1. Then hold down SHIFT and CTRL and hit the down arrow. This will highlight A1:A20, with A1 as the active cell. Now go to conditional formatting and use VBA Noob's formula above.