A watch is a small clock, typically worn either on the wrist or attached on a chain and carried in a pocket; wristwatches, however, are the most common type of watch used today. Watches evolved in the 17th century from spring powered clocks, which appeared in the 15th century. The first watches were strictly mechanical. As technology progressed, the mechanisms used to measure time have, in some cases, been replaced by use of quartz vibrations or electromagnetic pulses. The first digital electronic watch was developed in 1970.

Before wristwatches became popular in the 1920s, most watches were pocket watches, which often had covers and were carried in a pocket and attached to a watch chain or watch fob. In the early 1900s, the wristwatch, originally called a Wristlet, was reserved for women and considered more of a passing fad than a serious timepiece. Men, who carried pocket watches, were quoted as saying they would "sooner wear a skirt as wear a wristwatch". This changed in World War I, when soldiers on the battlefield found pocket watches to be impractical and attached their watches to their wrist by a cupped leather strap. It is also believed that Girard-Perregaux equipped the German Imperial Navy with wristwatches in a similar fashion as early as the 1880s, to be used while synchronizing naval attacks and firing artillery.

James Thomas "Jimmy" Fallon, Jr. (born September 19, 1974) is an American actor, comedian, singer, musician and television host. He currently hosts Late Night with Jimmy Fallon, a late-night talk show that airs Monday through Friday on NBC. Prior to that he appeared in several films, and was best known as a cast member on Saturday Night Live from 1998–2004.

James Thomas Fallon, Jr., was born in Brooklyn, New York. Jimmy is the son of Gloria and James Fallon, Sr., who is a Vietnam War veteran. His family later settled in Saugerties, New York, while his father worked at IBM in nearby Kingston, New York. He is of Irish descent. As a child, he and his older sister, Gloria, would reenact the “clean parts” of Saturday Night Live that his parents had taped for him. Fallon was such a fan of Saturday Night Live that he made a weekly event of watching it in his dormitory during college. In his teens, he impressed his parents with different impersonations, the first being of James Cagney. He was also musically inclined, and started playing guitar at age 13. He would go on to mix comedy and music in contests and shows.

Alexander Gerst (born May 3, 1976 in Künzelsau, Baden-Württemberg) is a European Space Agency astronaut having been selected in 2009 to undergo training. He studied at the University of Karlsruhe, Germany, where he received a university degree in physics. He also studied Earth Science at Victoria University of Wellington in New Zealand, where he was awarded a Master of Science. He has been working as a researcher since 2005 and received his Doctorate about volcanic eruption in 2010. In his spare time, he enjoys mountaineering, diving, climbing and skydiving.

He was selected as astronaut in 2009 by the European Space Agency.

Abel Tesfaye (born February 16, 1990), better known by his stage name The Weeknd, is an R&BCanadian recording artist and record producer from Toronto. He began recording songs under The Weeknd and uploading them to YouTube in late 2010, though the identity of the individual behind the project was initially unknown. In March 2011, The Weeknd released a nine-song free album, House of Balloons which was critically acclaimed. The title track is based on a sample of Siouxsie and the Banshees' hit single "Happy House. The first album is a part of a trilogy which includes Thursday released in August of the same year and Echoes of Silence issued in December. In June, House of Balloons was named as one of ten shortlisted nominees of 2011 Polaris Music Prize but eventually lost to Arcade Fire's The Suburbs. On December 21, 2011 at 11:07 p.m. EST Tesfaye released his highly anticipated third mixtape Echoes of Silence. The Weeknd's site crashed shortly after due to the large number of downloads. The Weeknd quickly provided a Hulkshare link to keep the album available while the official site was down.

Kristen Mary "Kris" Jenner (née Houghton; formerly Kardashian; born November 5, 1955) is an American television personality, socialite and businesswoman. She also is the manager for all of her family members, including Kourtney Kardashian, Kim Kardashian and Khloé Kardashian. She is the current wife of 1976 Summer Olympic Games Decathlon gold medalist Bruce Jenner and was married previously to lawyer Robert Kardashian; they divorced in 1990.

Kris Jenner was born Kristen Mary Houghton in San Diego, California, the daughter of Mary Jo (née Campbell) of Scottish descent and Robert Houghton, an engineer of Dutch descent. She has a sister, Karen. Her parents divorced when she was age seven, and she and her sister were raised by her mother.

Kris married first husband, lawyer Robert Kardashian (widely known for his early representation of O.J. Simpson) on July 8, 1978, when she was 22 years old. Kris was a housewife while her children were growing up. Robert filed for divorce in 1990. Robert Kardashian died September 30, 2003, two months after being diagnosed with esophageal cancer.