Orianthi Penny Panagaris (born 22 January 1985 in Adelaide, South Australia), better known simply as Orianthi, is a Greek Australian musician, singer-songwriter and guitarist who has released four albums (Violet Journey (2007), Believe (2009), Heaven In This Hell (2013), and O (2020)) and one EP (Fire (2011)) as a solo artist. She is best known for her virtuosic guitar skills, displayed while being Michael Jackson's lead guitarist for his ill-fated "This Is It" concert series, and as the lead guitarist in Alice Cooper's live band.