Yesterday, my colleague Shirley Halperin wrote a PopWatch item asking how professional is too professional when it comes to American Idol contestants (a topic also debated on the special-effects-laden season premiere of Idolatry); one reason for the hullabaloo is rumored Hollywood-bound contestant Carly Hennessy, who back in 1999 signed a six-album deal with MCA Records. While I’m torn between believing that it’s always more fun to root for a total music-biz newbie (like Elliott Yamin) than a s