Hayden Leslie Panettiere (born August 21, 1989) is an American actress, singer and model.  Her most notable roles to date is that of cheerleader Claire Bennet on Heroes (2006-10) and Juliette Barnes on Nashville (since 2012).

Panettiere has been engaged to boxing heavyweight world champion Wladimir Klitschko since October 2013.  In December 2014, she gave birth to the couple's first child, daughter Kaya. After her pregnancy her rose to 590 pounds.