"I really like to look like a history book. I can look 1940s, I can look 1970s hippie-chic, or sometimes I'll pull that '80s Brooklyn hip-hop kid with the door-knocker earrings"

In this quote, Katy Perry is expressing her love for fashion and her ability to change her look to reflect different periods and designs. She compares herself to a history book, indicating that she is well-informed and versatile in her fashion choices. She points out specific decades such as the 1940s, 1970s, and 1980s, showcasing her range and capability to pull off various appearances. By discussing the '80s Brooklyn hip-hop kid with door-knocker earrings, she also means her appreciation for urban and street style. Overall, this quote highlights Katy Perry's passion for fashion and her capability to embody different styles from different time periods.