Julie Suzanne Chen (born January 6, 1970) is an American television personality, news anchor, and producer for CBS. She has 16 years of newscasting experience. She is best known for co-anchoring CBS' The Early Show, alongside Harry Smith and Maggie Rodriguez. She has been the host of the U.S. version of Big Brother since its debut in July 2000. She is currently a co-host and the moderator of the CBS daytime series, The Talk, which features a panel of five hosts, discussing controversial maternal topics and contemporary issues. The Talk premiered on October 18, 2010.

Julie Chen was born in Queens, New York. Chen's mother Wan Ling Chen grew up in Rangoon, Burma, where Chen's grandfather was a leading industrialist. Her father was born in China and was one of the top leaders in the Kuomintang government of Chiang Kai-shek. Consequently, her family moved everywhere in China, eventually fleeing to Taiwan. Her two older sisters are Gladys and Victoria.

Chen attended Junior High School 194 in the Whitestone area of Queens, New York, where she was voted "Most Intelligent" and "Most Likely to Succeed." She graduated from high school in 1987 from St. Francis Prep after having missed the cutoff scores for specialized high school entrance exams for schools like the Bronx High School of Science, the school her older sisters attended. She attended the University of Southern California and graduated in 1991 with a major in broadcast journalism and in English.

Howard Allan Stern (born January 12, 1954) is an American radio personality, television host, author, actor and photographer best known for his radio show which was nationally syndicated from 1986 to 2005. He gained wide recognition in the 1990s where he was labeled a "shock jock" for his outspoken and sometimes controversial style. Stern has been exclusive to Sirius XM Radio, a subscription-based satellite radio service, since 2006. The son of a former recording and radio engineer, Stern wished to pursue a career in radio at the age of five. While at Boston University he worked at the campus station WTBU before a brief stint at WNTN in Newton, Massachusetts.

He developed his on-air personality when he landed positions at WRNW in Briarcliff Manor, WCCC in Hartford and WWWW in Detroit. In 1981, he was paired with his current newscaster and co-host Robin Quivers at WWDC in Washington, D.C. Stern then moved to WNBC in New York City in 1982 to host afternoons until his firing in 1985. He re-emerged on WXRK that year, and became one of the most popular radio personalities during his 20-year tenure at the station. Stern's show is the most-fined radio program, after the Federal Communications Commission (FCC) issued fines to station licensees for allegedly indecent material that totaled $2.5 million. Stern has won Billboard's Nationally Syndicated Air Personality of the Year award eight times, and is one of the highest-paid figures in radio.

Sharon Rachel Osbourne (née Arden, originally Levy; born 9 October 1952) is an English television host, author, music manager, businesswoman and promoter as well as the wife of heavy metal singer-songwriter Ozzy Osbourne.

She came into public prominence after appearing in The Osbournes, a reality television show that followed her family's daily routine. Osbourne later became a judge on the talent shows The X Factor and America's Got Talent. Her autobiography, Extreme, has sold in excess of two million copies.

After the success of The Osbournes and The X Factor, hosting her own chat shows and securing advertising contracts, Osbourne was ranked as the 25th richest woman in Britain on the 2009 Sunday Times Rich List. Sharon and husband, Ozzy Osbourne, are currently ranked as the 724th richest people in Britain with an estimated joint wealth of £110 million. Sharon Osbourne is credited with reviving her husband's heavy metal career by founding the summer Ozzfest tour. She currently lives in California and is one of five co-hosts of the daytime series, The Talk, where she discusses controversial topics and contemporary issues. The Talk premiered on 18 October 2010. BBC announced she is expected to host a syndicated daytime version Who Wants To Be A Millionaire in 2012.

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".

Jennifer Ann "Jenny" McCarthy (born November 1, 1972) is an American model, comedian, actress, author, activist, and game show host. She began her career in 1993 as a nude model for Playboy magazine and was later named their Playmate of the Year. McCarthy then parlayed her Playboy fame into a successful television and film acting career. Most recently, she has written books about parenting, and has become an activist promoting the claims that vaccines cause autism and that chelation therapy helps cure it—both claims are considered false by the medical community.

McCarthy was born in Evergreen Park, Illinois to a middle-class Catholic family of Polish and Irish descent. She lived in the West Elsdon neighborhood of Chicago. She is the second of four daughters; her sisters are named Lynette, Joanne and Amy. Her cousin is Academy Award-nominated actress Melissa McCarthy of Bridesmaids and Mike and Molly. McCarthy's mother, Linda, was a housewife and courtroom custodian, and her father, Dan McCarthy, was a steel mill foreman.