Mary Louise Weiss (December 28, 1948 – January 19, 2024) was an American singer and interior designer, best known as the lead singer of the Shangri-Las in the 1960s. Their single "Leader of the Pack" went to number one on the Billboard Hot 100 in 1964. She had little involvement in the music scene for decades, returning in 2007 to record her first and only solo album with Norton Records.
