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 As technology progressed, the mechanisms used to measure time have, in some cases, been replaced by use of quartz vibrations or electromagnetic pulses.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.

Blake Tollison Shelton (born June 18, 1976) is an American country music artist. In 2001, he made his debut with the single "Austin". Released as the lead-off single from his self-titled debut album, "Austin" went on to spend five weeks at Number One on the Billboard Hot Country Songs charts. This song was the first single from his gold-certified debut album, which also produced two more Top 20 hits. Although the album was released on Giant Records Nashville, Shelton was transferred to Warner Bros. Records Nashville after Giant closed in late 2001.

His second and third albums, 2003's The Dreamer (his first for Warner Bros. proper) and 2004's Blake Shelton's Barn & Grill, were each certified gold as well. Shelton's fourth album, Pure BS, was issued in 2007, and re-issued in 2008 with a cover of Michael Bublé's pop hit "Home" as one of the bonus tracks. This cover was also that album's third single. A fifth album, Startin' Fires, was released in November 2008. It was followed by the extended plays Hillbilly Bone and All About Tonight in 2010, and the album Red River Blue in 2011. He is currently a vocal coach on the NBC reality talent show The Voice with Adam Levine, Christina Aguilera, and Cee Lo Green.

Robert Quinlan Costas (born March 22, 1952) is an American sportscaster, on the air for NBC Sports television since the early 1980s.

Bob Costas was born in Queens, New York as a son of Jayne (née Quinlan), of Irish descent, and John George Costas, of Greek descent and an electrical engineer. In Ken Burns' Baseball, Costas indicated that he had a very poor relationship with his father, but did not go into specifics. He grew up in Commack, New York, graduating from Commack High School South. Following high school, he majored in Communications & Rhetorical Studies at Syracuse University where he dropped out of school. Later, he received an honorary degree from S. I. Newhouse School of Communications.

His sportscasting career started while attending Syracuse University, as an announcer for the Syracuse Blazers minor-league hockey team playing in the Eastern Hockey League and North American Hockey League.

Costas' career as a professional began at KMOX radio in St. Louis, where he served as a play-by-play announcer for the Spirits of St. Louis of the American Basketball Association. He also called Missouri Tigers basketball for KMOX, and co-hosted the station's Open Line call-in program.

Curtis James Jackson III (born July 6, 1975), better known by his stage name 50 Cent, is an American rapper, entrepreneur, investor, record producer, and actor. He rose to fame with the release of his albums Get Rich or Die Tryin' (2003) and The Massacre (2005). His album Get Rich or Die Tryin' has been certified eight times platinum by the RIAA.

Born in the South Jamaica of Queens, New York City, Jackson began drug dealing at the age of twelve during the 1980s crack epidemic. After leaving drug dealing to pursue a rap career, he was shot at and struck by nine bullets during an incident in 2000. After releasing his album Guess Who's Back? in 2002, Jackson was discovered by rapper Eminem and signed to Interscope Records. With the help of Eminem and Dr. Dre, who produced his first major commercial successes, Jackson became one of the world's highest selling rappers. In 2003, he founded the record label G-Unit Records, which signed several successful rappers such as Young Buck, Lloyd Banks, and Tony Yayo.

Elena Jane Goulding (born 30 December 1986), known professionally as Ellie Goulding, is an English singer-songwriter. In 2010 she became the second artist to both top the BBC's annual Sound of... poll and win the Critics' Choice Award at the BRIT Awards in the same year, following Adele's win of both in 2008. After signing to Polydor Records in 2009, she released her first EP in 2009, An Introduction to Ellie Goulding, followed by her debut studio album Lights in 2010. Her album debuted at number one on the UK Albums Chart and has sold over 650,000 copies in the UK. "Lights" was released in America March 8th 2011, where the title track has been certified platinum by the RIAA (excess of 1 million units sold) .

Goulding is a soprano, and her musical style has been compared to that of Kate Nash, Meiko, Lykke Li and Tracey Thorn.

Goulding was born and brought up in a small town near Hereford, Herefordshire, the second of four children. She began playing the clarinet at the age of nine, and at 14 began learning guitar. She attended Lady Hawkins' School in Kington, where she won a main part in a school production, the Wizard Of Oz, as the scarecrow. She started songwriting at the age of 15 and while in college she won a singing competition.