Bananarama is an English pop group formed in London in 1980. The group, originally a trio, consisted of friends Sara Dallin, Siobhan Fahey, and Keren Woodward. Fahey left the group in 1988 and was replaced by Jacquie O'Sullivan until 1991, when the trio became a duo. Their success on both pop and dance charts saw them listed in the Guinness World Records for achieving the world's highest number of chart entries by an all-female group. Between 1982 and 2009, they had 32 singles reach the Top 50 of the UK Singles Chart.