Hayden Panetierre is on Nashville.
Hayden Panettiere . She is known for her roles as cheerleader Claire Bennet on the NBC sci-fi series Heroes ( 2006 -- 10 ) , Juliette Barnes in the ABC/CMT musical-drama series Nashville ( 2012 -- present ) and Kairi in the video game series Kingdom Hearts . Nashville (2012 TV series) . The series chronicles the lives of various fictitious country music singers in Nashville , Tennessee starring Connie Britton as Rayna Jaymes , a legendary country music superstar , whose stardom begins fading , and Hayden Panettiere as rising younger star Juliette Barnes .