Michael Jackson was a singer, songwriter, dancer and known simply as "The King of Pop." His contributions to music, dance, and highly publicized personal life made him a global figure in popular culture for over four decades. Jackson made his professional debut in 1964 as a member of The Jackson 5. During his solo career, his music videos, "Beat It," "Billie Jean," and "Thriller," are credited with breaking racism in the United States and transforming the medium into an art form. Thriller is the best-selling album of all time. Jackson was the most awarded recording artist in the history of popular music. Aspects of Jackson's personal life generated controversy and while preparing for his comeback concert series, This Is It, Jackson died of acute Propofol and Benzodiazepine intoxication on June 25, 2009, after suffering from cardiac arrest. The Los Angeles County Department of Medical Examiner Coroner ruled his death a homicide, by his personal physician, Conrad Murray.