Bananarama is an English female pop music singing group formed in London in 1979, who have been active ever since. Their success on both pop and dance charts have earned the group a listing in The Guinness Book of World Records as the all-female group with the most chart entries in the world, a record which they still hold. Their best known singles include, "Cruel Summer" (top 10 UK and US), "I Heard a Rumour", "Venus" (topped the US Billboard Hot 100) and "Love in the First Degree". They are associated with the MTV-driven Second British Invasion of the US.
In addition to their chart success, the band is also known for their unique vocal style, generally singing in unison rather than in harmony like most vocal groups. Although there have been line-up changes, the group enjoyed most success as a trio made up of friends Keren Woodward, Sara Dallin and Siobhan Fahey. Following Fahey's departure from the group in 1988, Jacquie O'Sullivan joined the group for three years. Since 1992, Woodward and Dallin have continued Bananarama as a duo.