The Hep Stars are a Swedish rock band formed in Stockholm in 1963. During 1965–1966 the band was the most successful of contemporary 1960s Swedish pop groups performing in the English language. Outside the Nordic countries the band is best known as a launching point for the keyboard player, lead guitar and composer Benny Andersson, who went on to enjoy worldwide success with ABBA.

The band was founded by the drummer Christer "Chrille" Pettersson (3 November 1942 – 27 August 2006) and the bass guitarist Lennart "Lelle" Hegland (9 January 1943 – 13 April 2022) with the keyboard player Hans Östlund and the lead/rhythm guitarist-singer Jan "Janne" Frisk (29 November 1943). At the height of their popularity, the line-up consisted of Hegland, Pettersson, Frisk, Sven Ove "Svenne" Hedlund on lead vocals (10 March 1945, Solna – 3 December 2022) and Benny Andersson on keyboards and lead guitarist.