20th Century Masters – The Millennium Collection: The Best of Parliament is a compilation album by the American Funk band Parliament released in 2000 as part Universal Music's "Millennium Collection" series. 20th Century Masters uses eight of the ten songs from Parliament's Greatest Hits (1984), and is essentially an update of that collection. Album versions of the songs "Up for the Down Stroke"; "Mothership Connection (Star Child)" and "Aqua Boogie" are also used in place of the edited versions used on Greatest Hits.