Just listened to it and there ain't no F# at all. It's basically the same structure as the Nashville Bluegrass band use.

The chords are:

G/// G7/// C/// G/// Em/// A7/// D/// /// G/// G7/// C/// G/// Em/// D/// G/// ///

Chorus: C/// /// G/// /// Em/// A7/// D/// ///
G/// G7/// C/// G/// Em/// D/// G/// ///

*****************************************************************

Boy, great version! That woman can flat out sing!

Cheers

Rick (p.s....I meant an F with an "F" note in my post above, but I'd forgotten how I played it. It's not an "F" chord but the G7 that Iris uses.)