Taylor Swift - Crazier Video

I've never seen the video until now. I know that the song charted on Billboard but never heard of the song either. LOL . It turns out this is a very good song.

Miley Cyrus Performs "The Climb" at 2009 CMA Awards

I don't know that this song is considered a country song. If it isn't,then why she's performing this song on a country awards show.