[lastfm]Taylor Swift[/lastfm] comes in at No. 12 on Forbes’ 100 most powerful celebrities list, released this week. The high-ranking makes the 20-year-old superstar the top-rated Country musician on the list, but not the youngest star. Do you think perhaps, Grunwald’s man-crush [lastfm]Justin Bieber[/lastfm] is the youngest? NOPE……is NOT Bieber, it is [lastfm]Miley Cyrus [/lastfm]who has that distinction at age 17, she ranks just behind Taylor at No. 13.