Karen Irwin performs a one-woman cabaret show called "A Piece of Her Heart" that recounts the life of Janis Joplin. The show details how Joplin overcame adversity from a difficult childhood and adolescence to become a successful blues musician, inspiring many young women. Irwin weaves together Joplin's story with the blues singers who influenced her and her own transformation from a shy girl to a confident singer unafraid to use her powerful voice, showing how Joplin continues to impact her life.