Group Hepsi, commonly known as Hepsi, were a famous Turkish pop/R&B girl group. They consist of Eren Bakıcı, Cemre Kemer and Yasemin Yürük, and formerly of Gülçin Ergül, 2009, all the members of the group are from the city of Istanbul, Turkey. The group was formed in 2002 but rose to fame in the year 2005 with their debut album Bir, which spawned the hit songs "Olmaz Oğlan", "Üç Kalp", and "Herşeye Rağmen", and the hugely successful song "Yalan".