Orianthi Penny Panagaris (born 22 January 1985), known mononymously as Orianthi, is an Australian guitarist, singer and songwriter who rehearsed in 2009 with Michael Jackson in preparation for his This Is It concert series, and performed with Alice Cooper's touring band. Her 2009 debut single "According to You" peaked at No. 3 in Japan, No. 8 in Australia and No. 17 in the US; her second album, Believe, received a worldwide release in late 2009. The same year, she was named one of the "12 Greatest Female Electric Guitarists" by Elle magazine. She also won the "2010 Breakthrough Guitarist of the Year" award hosted by Guitar International magazine.

Source: Wikipedia (https://en.wikipedia.org/wiki/Orianthi)