British Sign Language (BSL) is the sign language used in the United Kingdom (UK), and is the first or preferred language of some deaf people in the UK; there are 125,000 deaf adults in the UK who use BSL plus an estimated 20,000 children. The language makes use of space and involves movement of the hands, body, face and head. Many thousands of people who are not deaf also use BSL, as hearing relatives of deaf people, sign language interpreters or as a result of other contact with the British deaf community.

Records exist of a sign language existing within deaf communities in Britain as far back as 1570. British sign language has evolved, as all languages do, from these origins by modification, invention and importation.Thomas Braidwood, an Edinburgh teacher, founded 'Braidwood's Academy for the Deaf and Dumb' in 1760 which is recognised as the first school for the deaf in Britain. His pupils were the sons of the well-to-do. His early use of a form of sign language, the combined system, was the first codification of what was to become British Sign Language. Joseph Watson was trained as a teacher of the Deaf under Thomas Braidwood and he eventually left in 1792 to become the headmaster of the first public school for the Deaf in Britain, the London Asylum for the Deaf and Dumb in Bermondsey.

A sign language (also signed language) is a language which, instead of acoustically conveyed sound patterns, uses manual communication and body language to convey meaning. This can involve simultaneously combining hand shapes, orientation and movement of the hands, arms or body, and facial expressions to fluidly express a speaker's thoughts.

Wherever communities of deaf people exist, sign languages develop. While they utilize space for grammar in a way that spoken languages do not, sign languages exhibit the same linguistic properties and use the same language faculty as do spoken languages. Hundreds of sign languages are in use around the world and are at the cores of local deaf cultures. Some sign languages have obtained some form of legal recognition, while others have no status at all.

One of the earliest written records of a signed language occurred in the fifth century BC, in Plato's Cratylus, where Socrates says: "If we hadn't a voice or a tongue, and wanted to express things to one another, wouldn't we try to make signs by moving our hands, head, and the rest of our body, just as dumb people do at present?" It seems that groups of deaf people have used signed languages throughout history.

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".

Carly Rae Jepsen (born November 21, 1985) is a Canadian recording artist and singer-songwriter from Mission, British Columbia. In 2007, she placed third in the fifth season of Canadian Idol, and was a part of the Canadian Idol Top 3 concert tour.

Shortly after competing on Idol, she signed to Fontana and MapleMusic, and released her debut album, Tug of War, on September 30, 2008. Three years later, she released a new single, entitled "Call Me Maybe", which was released by 604 Records, and was followed by the release of her debut extended play, Curiosity, on February 14, 2012. "Call Me Maybe" was met with much success, reaching the Top 5 on the Billboard Hot 100 and reaching the number 1 spot on the Canadian Hot 100. The single also went to number 1 in Australia, Ireland and the United Kingdom. Jepsen signed with Interscope Records in 2012.

Jepsen attended Heritage Park Secondary School in Mission, British Columbia and has since performed there post-graduation. She later attended the Canadian College of Performing Arts in Victoria, BC before auditioning for Canadian Idol. After completing the Canadian Idol tour, Jepsen retreated to B.C. to focus on writing, recording and completing her band. Her demos attracted attention and she was eventually signed a joint management deal with Simkin Artist Management and Dexter Entertainment. A deal with Fontana/Maple Music quickly followed, leading Jepsen into the studio with producer/writer Ryan Stewart.