'The Simpsons' announces new Milhouse voice actor following Pamela Hayden's exit

In the wake of voice actor Pamela Hayden's retirement, The Simpsons' beloved blue-haired nerd Milhouse Van Houten will now be played by singer Kelly Macleod, Entertainment Weekly can exclusively reveal. Macleod will make her debut as the character on Sunday's season finale "Estranger Things."