In August 1999, Citigroup unveiled a new identity that was designed by Paula Scher from Pentagram, who originally created the logo for Citigroup on a napkin within 10 minutes (often called the 1.5 million-dollar napkin). Her partners were wary that their client (Citigroup) would not pay for something created so quickly, as they sell their design process. Scher replied that she was selling ten minutes of her entire life's experience.[1]
From 1999–2011, this was used as a brand logo, with the 1999 and 2007 logos being used as corporate logos, but was later used as a corporate logo in 2011, along with being a brand logo.