A lower-back tattoo, also known as tramp stamp, is a tattoo on the lower back that became popular in the first decade of the 21st century, and gained a reputation for their erotic appeal. The tattoos were sometimes accentuated by low-rise jeans or crop tops. Their popularity was in part due to the influence of female celebrities. A 2011 study of media stereotypes criticized media portrayals of lower-back tattoos, arguing that they were unfairly cast as a symbol of promiscuity.