I love Sarah McLachlan's version of Blackbird for the soundtrack of I Am Sam. I'd love to hear Carrie's version, I think she'll give an awesome version of this song.
I have not heard her version, I admit. O: I would look it up, but I can't afford liking it. I just got a five disc case of Megadeth that I barely have any room for.
To the Lady A suggestions: Yessss!
To the Katy Perry suggestions: . . . No.
Another suggestion: "Addicted" by Kelly Clarkson.
Maybe "Time Stand Still" by Rush.
Have I already suggested my all-time favourite song, "Since I Been Loving You" by Led Zeppelin. I don't remember. XD
"Breaking the Silence," "Revolution Calling" or "Eyes of a Stranger" by Queensryche would also be effective.