Group Hepsi, commonly known as Hepsi, is a famous Turkish pop/R&B girl group, all of which its members are from the city of Istanbul. The group rose to fame in the year 2005 with their debut album Bir, which spawned the hit songs "Olmaz O?lan", "Üç Kalp", "Her?eye Ra?men" and the hugely successful song Yalan. They later went on to release their first official EP, "Tempo", in association with Pepsi, and worked with op legend Sezen Aksu, famous for working with Tarkan. In 2006 they also released their second studio album, Hepsi 2, which spawned the huge hit "Kalpsizsin", and A?k Sak?z?. The group has just released their third studio album on 24 May 2008 called "Saka" meaning "Joke" in English. The group released their first single for this album on 23 May 2008, called "4 Peynirli Pizza" meaning "4 cheesed pizzas".   Wikipedia