Monthly Moron for September 2013

Which one of these Blonde former child stars had the most spectacular fall from grace?
0% Miley Cyrus
Miley Cyrus
By Glenn Francis Uploaded by MyCanon (Britney Spears) [GFDL ( or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (], via Wikimedia Commons
20% Britney Spears
Britney Spears
By The Heart Truth (Amanda Bynes on the Red Carpet) [Public domain], via Wikimedia Commons
80% Amanda Bynes
Amanda Bynes