A wheel is a circular component that is intended to rotate on an axle. The wheel is one of the main components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel and flywheel.

Common examples are found in transport applications. A wheel greatly reduces friction by facilitating motion by rolling together with the use of axles. In order for wheels to rotate, a moment needs to be applied to the wheel about its axis, either by way of gravity, or by the application of another external force or torque.

The English word wheel comes from the Old English word hweol, hweogol, from Proto-Germanic *hwehwlan, *hwegwlan, from Proto-Indo-European *k^wek^wlo-, an extended form of the root *k^wel- "to revolve, move around". Cognates within Indo-European include Greek κύκλος kýklos, "wheel", Sanskrit chakra, Old Church Slavonic kolo, all meaning "circle" or "wheel",

Christina María Aguilera (born December 18, 1980) is an American recording artist and actress. Aguilera first appeared on national television in 1990 as a contestant on the Star Search program, and went on to star in Disney Channel's television series The Mickey Mouse Club from 1993 to 1994. Aguilera signed to RCA Records after recording "Reflection", the theme song for the animated film Mulan (1998).

In 1999, Aguilera came to prominence following her debut album Christina Aguilera, which was a commercial success spawning three number one singles on the Billboard Hot 100—"Genie in a Bottle", "What a Girl Wants", and "Come On Over Baby (All I Want Is You)." Her sophomore and her debut Latin-pop album, Mi Reflejo (2000), a Christmas third studio album, My Kind of Christmas (2000), and several collaborations followed which garnered Aguilera worldwide success, though she was displeased with her lack of input in her music and image. After parting from her management, Aguilera took creative control over her fourth studio album, Stripped (2002). The album's second single, "Beautiful", was a commercial success and helped the album's commercial performance amidst controversy over Aguilera's image. Aguilera followed up Stripped with the soul, jazz and blues inspired, Back to Basics (2006), released to positive critical acclaim. The album produced three singles "Ain't No Other Man", "Hurt" and "Candyman". Four years later Aguilera released her sixth studio album, Bionic (2010), which incorporated aspects of R&B, electropop, and synthpop and was met with mixed reviews and low sales. Aguilera's seventh studio album is set to be released in 2012.

Kevin Spacey, CBE (born Kevin Spacey Fowler; July 26, 1959) is an American actor, director, screenwriter, producer, and crooner. He grew up in California, and began his career as a stage actor during the 1980s, before being cast in supporting roles in film and television. He gained critical acclaim in the early 1990s, culminating in his first Academy Award for The Usual Suspects (Best Supporting Actor), followed by a Best Actor Academy Award win for American Beauty (1999). His other starring roles in Hollywood include Seven, L.A. Confidential, Pay It Forward, K-PAX, and Superman Returns in a career which has earned him several Emmy and Golden Globe nominations. Since 2003, he has been artistic director of the Old Vic theatre in London.

Spacey was born in South Orange, New Jersey, the son of Kathleen Ann (née Knutson; December 5, 1931 – March 19, 2003), a secretary, and Thomas Geoffrey Fowler (June 4, 1924 – December 24, 1992), a technical writer and data consultant. He has two older siblings: a sister, Julie, and a brother, Randy. He attended Northridge Military Academy, Canoga Park High School (in tenth and eleventh grades), and then Chatsworth High School in Chatsworth, Los Angeles, where he graduated valedictorian of his class. At Chatsworth High, he starred in the school's senior production of The Sound of Music, playing the part of Captain Georg von Trapp, opposite Mare Winningham's character, Maria.