In October 2004 , Etheridge was diagnosed with breast cancer , and underwent surgery and chemotherapy . At the 2005 Grammy Awards , she made a return to the stage and , while bald from chemotherapy , performed a tribute to Janis Joplin with the song " Piece of My Heart " . Etheridge 's performance was widely lauded , with India.Arie writing " I Am Not My Hair " about Etheridge . Later that year , Etheridge released her first compilation album , '' Greatest Hits : The Road Less Traveled '' . The album was a success , peaking at No. 14 on the '' Billboard '' 200 , and going Gold almost immediately . Her latest studio album is '' The Medicine Show ''
2005 Grammy Awards
47th Annual Grammy Awards
Melissa Etheridge