Jennifer Lopez and Steven Tyler and gone from 'American Idol', leaving at leats 2 judges seats empty. JLo has some suggestions on who should replace her. The hot 42-year-old singer said quote, "I think Bono, Bon Jovi, or Mick Jagger. You know me, I think big." Life goes on for Jennifer post idol, she is currently on North American tour with Enrique Iglesias.