Katy has 2 Cher concerts.

Cher (born Cherilyn Sarkisian; May 20, 1946) is an American singer, actress and television personality. Often referred to by the media as the "Goddess of Pop", she has been described as embodying female autonomy in a male-dominated industry. Cher is known for her distinctive contralto singing voice and for having worked in numerous areas of entertainment, as well as adopting a variety of styles and appearances throughout her six-decade-long career.