The Greatest Hits – Why Try Harder is a compilation album by English electronic musician Fatboy Slim, released on 19 June 2006. In addition to previously released material, the album includes two new tracks: "Champion Sound" and "That Old Pair of Jeans". A collection of music videos titled The Greatest Hits – Why Make Videos was also released in 2006. Hit singles "Ya Mama" and "Star 69" were omitted.

Norman Quentin Cook, also known by his stage name Fatboy Slim, is an English musician, DJ, and record producer who helped to popularise the big beat genre in the 1990s. In the 1980s, Cook was the bassist for the Hull-based indie rock band the Housemartins, who achieved a UK number-one single with their a cappella cover of "Caravan of Love". After the Housemartins split up, Cook formed the electronic band Beats International in Brighton, who produced the number-one single "Dub Be Good to Me". He then played in Freak Power, Pizzaman, and the Mighty Dub Katz with moderate success.