TLC was an American music group, whose repertoire spans R&B, hip hop and pop. Originally known as 2nd Nature, the group was formed in Atlanta, Georgia in 1991 by Crystal Jones, Tionne "T-Boz" Watkins and Lisa "Left Eye" Lopes. Before signing to LaFace Records through a production deal with R&B singer Perri "Pebbles" Reid, the group's name was changed to "TLC", and soon after Crystal Jones was replaced by Rozonda "Chilli" Thomas. With 45 million albums and singles sold worldwide, TLC is the world's best-selling female group of all time, having been awarded 5 Grammy Awards and four multi-platinum-selling albums. Their second album, CrazySexyCool (1994), was one of the first albums to be awarded diamond certification by the RIAA for selling at least 11 million copies. Billboard ranks the group as one of the greatest musical trios of all time[LINK: http://www.billboard.com/bbcom/greatesttrios/2006/tlc.jsp] G