Penny McLean, born Gertrude Wirschinger, is an Austrian-born pop and disco singer who gained prominence in the mid-1970s. She's best known as a member of the disco trio Silver Convention and for her solo hit, "Lady Bump," which topped the charts in several countries. McLean's music is characterized by catchy pop melodies infused with disco beats, reflective of the popular musical trends of her era. Despite her limited discography, her contributions to the disco genre have left a lasting mark on the music industry.