Anastasia Valeryevna "Nastia" Liukin (Russian: Анастасия "Настя" Валерьевна Люкина; born October 30, 1989) is an American artistic gymnast. She is the 2008 Olympic individual all-around Champion, the 2005 and 2007 World Champion on the balance beam, and the 2005 World Champion on the uneven bars. With nine World Championships medals, seven of them individual, Liukin is tied with Shannon Miller for the second-highest tally of World Championship medals; Alicia Sacramone has ten. Liukin has also tied Miller's record as the American gymnast having won the most medals in a single non-boycotted Olympic Games.

The daughter of two former Soviet champion gymnasts, Olympic gold medalist Valeri Liukin – the first man to do a triple backflip – and World Champion rhythmic gymnast Anna Kotchneva, Nastia Liukin was born in Moscow and moved to the United States as a young child. She began gymnastics after spending time in the gym while her parents coached. Liukin is coached by her father at the World Olympic Gymnastics Academy, her family's gymnastics club in Plano, Texas.

Shawn Machel Johnson (born January 19, 1992) is an American artistic gymnast. She was the 2008 Olympic balance beam gold medalist and all-around, and floor exercise silver medalist, the 2007 all-around World Champion, and the 2007 and 2008 U.S. all-around champion. In 2009, Johnson became the winner of the season eight edition of Dancing with the Stars.

Johnson was born in Des Moines, Iowa, the only child of Doug and Teri Johnson. Her parents enrolled her in a gymnastics class at age three after they noticed her climbing cabinets and jumping off tables. At age six, Johnson was one of Liang Chow's first students when he opened a gymnastics school in West Des Moines.

Johnson attended a public school, Valley High School. She was on the honor roll, attended football games, and participated in extra-curriculars. Through 2008, Johnson maintained a more balanced lifestyle than typical of elite female gymnasts. She limited her gymnastics training to 25 hours per week, as opposed to the more typical 40 hours.

Piers Stefan Pughe-Morgan (born Piers Stefan O'Meara; 30 March 1965), known professionally as Piers Morgan, is a British journalist and television presenter. He is editorial director of First News, a national newspaper for children.

Morgan branched into television mainly as a presenter, but has become best known as a judge or contestant in reality television programmes. In the UK, he was a judge on Britain's Got Talent. Morgan is best known in the United States as a judge on the show America's Got Talent, and as the winner of The Celebrity Apprentice. On 17 January 2011, he began hosting Piers Morgan Tonight for CNN in the timeslot previously occupied by Larry King Live after the retirement of host Larry King.

Morgan has authored eight books, including three volumes of memoirs.

Piers Morgan was born on 30 March 1965, in Guildford, Surrey, England, to Eamon Vincent O'Meara, a dentist, of Dorking, Surrey, and Gabrielle Georgina Sybille (née Oliver). His father died when he was one year old; his mother subsequently remarried. He has three older siblings. His ancestry includes Irish, Portuguese, Scottish, and English. Morgan was raised Catholic. Named Piers Stefan Pughe-Morgan by his stepfather, Morgan attended an independent school called Cumnor House from the ages of seven to thirteen, and then Chailey School, a comprehensive secondary school in Chailey, near Lewes, East Sussex, followed by Lewes Priory School for VI form. Morgan studied Journalism at Harlow College. After a brief career at Lloyds of London, he joined the Surrey and South London Newspaper Group in 1985, where he worked as a reporter on the South London News, and the Streatham and Tooting News. Morgan was recruited (he says headhunted by editor Kelvin MacKenzie) to join The Sun newspaper, specifically to work on the Bizarre column.

Alicia Marie Sacramone ( /əˈliːʃə ˌsækrəˈmoʊni/; born December 3, 1987) is an American artistic gymnast.

Sacramone began gymnastics at the age of eight, began competing in the elite ranks in 2002 and joined the U.S. national team in 2003. At US National Championships from 2004 to 2008, she won twelve medals, including four golds on vault and two golds on floor exercise. At World Championships from 2005 to 2007, she won seven medals, including a floor exercise gold in 2005 and a team gold in 2007. At the 2008 Beijing Olympics, she won a team silver medal. In 2010, Sacramone made a comeback by winning the National Championship on Vault. Later in 2010 at the World Championships in Rotterdam, Netherlands, she won the World Title on Vault as well. Her gold gave her a total of nine medals overall, joining Shannon Miller and Nastia Liukin as the U.S. athletes with the most medals at the gymnastics world championships until the US team won gold in the team finals at the 2011 World Championships. Though she was injured and could not compete, she still received a medal as an official member of the U.S. team, earning her tenth World medal, making her the most decorated U.S. gymnast in the history of the World Championships.

Chellsie Marie Memmel (born June 23, 1988 in West Allis, Wisconsin) is an American gymnast. She is the 2005 World All-Around Champion, making her the third American woman, after Kim Zmeskal and Shannon Miller, to become World Champion in the All-Around. She is also a World Champion on the uneven bars (2003) and as part of the U.S. team (2003). She is a member of the United States' 2008 Olympic women's gymnastics team.

With a total of seven World and Olympic medals, Memmel is tied with Shawn Johnson as the fifth most decorated U.S. female gymnast in history behind Shannon Miller (16), Nastia Liukin (14), Alicia Sacramone (11), and Dominique Dawes (8).

Memmel has two skills named after her: a double turn with leg fully extended in a "Y" on floor and a piked barani on beam.

Memmel is also the third woman in the world to complete a Dos Santos, an Arabian double front in the piked position.

Memmel often competed the following skills on the following apparatuses.

Uneven Bars: Hindorff to Pak transition, stalder Shaposhnikova, Tkachev, Luo (jam to handstand) to a double front dismount.