Nudity or nakedness is the state of wearing no clothing. The wearing of clothing is exclusively a human characteristic. The amount of clothing worn depends on functional considerations (such as a need for warmth or protection from the elements) and social considerations. In some situations the minimum amount of clothing may be socially acceptable, while in others much more clothing is expected.

Modern humans are the only survivors of several species of naked apes who may have worn clothes, according to DNA studies of clothing lice. This study suggests that clothing may have been used as long ago as 650 thousand years ago – much longer than previously thought. Embarrassment and shame may be consequences of the prolonged infancy of human offspring whose care implies a state of monogamy for some long time, together with the reduction of the temptations of infidelity

People, as individuals and in groups, have varying attitudes towards their own nudity. Some people are relaxed about appearing less than fully clothed in front of others, while others are uncomfortable or inhibited in that regard. People are nude in a variety of situations, and whether they are prepared to disrobe in front of others depends on the social context in which the issue arises. For example, people need to bathe without clothing, some people also sleep in the nude, some prefer to sunbathe in the nude or at least topless. Many people are prepared to disrobe for a medical examination, while others are nude in other situations. Some people adopt nudism as a lifestyle.

Kimberly Noel "Kim" Kardashian (born October 21, 1980) is an American socialite, celebutante, television personality, model, actress and businesswoman. She is known for starring in Keeping Up with the Kardashians, the E! reality series that she shares with her family, and its spin-offs including Kourtney and Kim Take New York.

Prior to the development of her career as a reality television star, Kardashian gained notoriety as the subject of a sex tape that subsequently resulted in a court awarding her $5 million. She has been involved in the production of several lines of clothing and fragrances. In 2010, she was the highest earning reality star, with estimated earnings of $6 million, and is one of the most highly documented and followed celebrities in the world in popular media.

In August 2011, Kardashian married basketball player Kris Humphries in a widely publicized ceremony. In October 2011, Kardashian filed for divorce, 72 days after the wedding.

Kardashian was born in Los Angeles, California, the daughter of attorney Robert Kardashian and his wife Kris Kardashian (née Houghton). Her father was a third generation Armenian American, and her mother is of Dutch and Scottish descent. Kardashian has two sisters, Kourtney and Khloé, and one brother, Robert. She has stepbrothers Burton Jenner, Brandon Jenner, and reality TV star Brody Jenner, step-sister Casey Jenner, and half-sisters Kendall Jenner and Kylie Jenner. She attended Marymount High School.

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.