Feminism is a collection of movements aimed at defining, establishing, and defending equal political, economic, and social rights for women. In addition, feminism seeks to establish equal opportunities for women in education and employment. A feminist is a "person whose beliefs and behavior are based on feminism."

Feminist theory, which emerged from these feminist movements, aims to understand the nature of gender inequality by examining women's social roles and lived experience; it has developed theories in a variety of disciplines in order to respond to issues such as the social construction of sex and gender. Some of the earlier forms of feminism have been criticized for taking into account only white, middle-class, educated perspectives. This led to the creation of ethnically-specific or multiculturalist forms of feminism.

Feminist activists campaign for women's rights – such as in contract law, property, and voting – while also promoting bodily integrity, autonomy and reproductive rights for women. Feminist campaigns have changed societies, particularly in the West, by achieving women's suffrage, gender neutrality in English, equal pay for women, reproductive rights for women (including access to contraceptives and abortion), and the right to enter into contracts and own property. Feminists have worked to protect women and girls from domestic violence, sexual harassment, and sexual assault. They have also advocated for workplace rights, including maternity leave, and against forms of discrimination against women. Feminism is mainly focused on women's issues, but because feminism seeks gender equality, some feminists argue that men's liberation is a necessary part of feminism, and that men are also harmed by sexism and gender roles.

Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.

William "Bill" Maher, Jr. ( /ˈmɑːr/; born January 20, 1956) is an American stand-up comedian, television host, political commentator, author, and actor. Before his current role as the host of HBO's Real Time with Bill Maher, Maher hosted a similar late-night talk show called Politically Incorrect originally on Comedy Central and later on ABC.

Maher is known for his political satire and sociopolitical commentary, which targets a wide swath of topics including religion, politics, bureaucracies of many kinds, political correctness, the mass media, greed among people and persons in positions of high political and social power, and the lack of intellectual curiosity in the electorate. He supports the legalization of marijuana and same-sex marriage, and serves on the board of PETA. He is also a critic of religion and is an advisory board member of Project Reason, a foundation to promote scientific knowledge and secular values within society. In 2005, Maher ranked at number 38 on Comedy Central's 100 greatest stand-up comedians of all time. Bill Maher received a Hollywood Walk of Fame star on September 14, 2010.