Here's a recent post from the PJ music forums:
"Hypothetically speaking, if a pop star who enjoys a borderline abusive relationship with her fans had recently attended an audition for one of the main roles in a West End show based on a Hollywood movie, would this indicate that her proposed upcoming fourth album has nothing more than a Ghost of a chance of coming out?
Naming no names, obviously."
and after a little discussion about it, the same person said
"Going from her brilliant acoustic versions, she can certainly hold an unchained melody without any problem..."
I'm not sure if she will star in the show or not because it was an audition. IF (repeat: IF) this is true, then i hope she gets the part. I'd like to see Sophie doing some acting. Besides, this could also be a good opportunity for Sophie to learn some simple dance moves.
EDIT - It's probably this one - http://www.ghostthemusical.com/
Lets hope she gets the part