Showgirl: The Greatest Hits Tour was the eighth concert tour by Australian singer Kylie Minogue. It was launched in support of her second major greatest hits compilation, Ultimate Kylie (2004) and visited Europe. It began on 19 March 2005 in Glasgow, Scotland at SECC Concert Hall 4 and concluded on 7 May 2005 in London, England at the Earls Court Exhibition Centre. The tour was announced on 24 October 2004, promoted by 3A Entertainment in Europe and Frontier Touring in Asia and Australia. Showgirl: The Greatest Hits Tour was intended to be a celebration of both Minogue's career and long-term relationship with her audience.

Ultimate Kylie is the second major greatest hits album by Australian singer Kylie Minogue, and her first greatest hits released under her contract with Parlophone, her record company between 1999–2015. The compilation was released in many different formats including a two-disc edition and a deluxe double disc with a bonus DVD. A separate compilation DVD with the same name, was released to accompany the audio versions. The album includes two new tracks; its lead single, "I Believe in You", and the second single, "Giving You Up". A third track, "Made of Glass", was recorded for the album but not used; it was included on the physical releases of "Giving You Up".