Kathleen Hanna is an American singer, musician and pioneer of the feminist punk riot grrrl movement, and punk zine writer. In the early-to-mid-1990s, she was the lead singer of feminist punk band Bikini Kill, and then fronted the electronic rock band Le Tigre in the late 1990s and early 2000s. Since 2010, she has recorded as the Julie Ruin.

Riot grrrl is an underground feminist punk movement that began during the early 1990s within the United States in Olympia, Washington, and the greater Pacific Northwest, and has expanded to at least 26 other countries. A subcultural movement that combines feminism, punk music, and politics, it is often associated with third-wave feminism, which is sometimes seen as having grown out of the riot grrrl movement and has recently been seen in fourth-wave feminist punk music that rose in the 2010s. The genre has also been described as coming out of indie rock, with the punk scene serving as an inspiration for a movement in which women could express anger, rage, and frustration, emotions considered socially acceptable for male songwriters but less commonly for women.